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71-424: The term naval stores originally applied to the organic compounds used in building and maintaining wooden sailing ships, a category which includes cordage , mask, turpentine , rosin , pitch and tar . These materials were originally used for water- and weather-proofing wooden ships. Masts , spars , and cordage needed protecting, and hulls made of wood required a flexible material, insoluble in water, to seal

142-426: A better return on capital. In the 21st century, most sailing represents a form of recreation or sport . Recreational sailing or yachting can be divided into racing and cruising . Cruising can include extended offshore and ocean-crossing trips, coastal sailing within sight of land, and daysailing. Sailing relies on the physics of sails as they derive power from the wind, generating both lift and drag. On

213-456: A discovery or if no land was found. This was well suited to the prevailing winds as Pacific islands were steadily colonized. By the time of the Age of Discovery —starting in the 15th century—square-rigged, multi-masted vessels were the norm and were guided by navigation techniques that included the magnetic compass and making sightings of the sun and stars that allowed transoceanic voyages. During

284-409: A given course, the sails are set to an angle that optimizes the development of wind power, as determined by the apparent wind , which is the wind as sensed from a moving vessel. The forces transmitted via the sails are resisted by forces from the hull , keel , and rudder of a sailing craft, by forces from skate runners of an iceboat, or by forces from wheels of a land sailing craft which are steering

355-639: A great deal, depending on the type of wood used. A common quality measure for tall oil is acid number . With pure pines it is possible to have acid numbers in the range 160–165, while mills using a mix of softwoods and hardwoods might give acid numbers in the range of 125–135. Normally crude tall oil contains rosins , which contains resin acids (mainly abietic acid and its isomers ), fatty acids (mainly palmitic acid , oleic acid and linoleic acid ) and fatty alcohols , unsaponifiable sterols (5–10%), some sterols , and other alkyl hydrocarbon derivates. By fractional distillation tall oil rosin

426-679: A ledge called a “box” to collect the sap. Large numbers of slaves were used to score the trees, collect and process the sap. Zallen describes this as industrial slavery–different from the more common vision of slaves in agriculture. By the 1840s camphine , a blend of turpentine and grain alcohol , became the dominant lamp fuel in the US. [Zallen prefers the camphene spelling.] The pine trees of North Carolina were well suited to camphine production. The business also provided additional need for slaves as production expanded. Backwoods became more productive. Slaves were often leased in winter when agriculture

497-423: A parachute, with drag predominantly propelling the craft. For craft with little forward resistance, such as ice boats and land yachts , this transition occurs further off the wind than for sailboats and sailing ships . Wind direction for points of sail always refers to the true wind —the wind felt by a stationary observer. The apparent wind —the wind felt by an observer on a moving sailing craft—determines

568-400: A sailboat, point of sail affects lateral force significantly. The higher the boat points to the wind under sail, the stronger the lateral force, which requires resistance from a keel or other underwater foils, including daggerboard, centerboard, skeg and rudder. Lateral force also induces heeling in a sailboat, which requires resistance by weight of ballast from the crew or the boat itself and by

639-434: A sailing craft turns its stern past the eye of the wind so that the apparent wind changes from one side to the other, allowing progress on the opposite tack. This maneuver can be done on smaller boats by pulling the tiller towards yourself (the opposite side of the sail). As with tacking, the type of sailing rig dictates the procedures and constraints for jibing. Fore-and-aft sails with booms, gaffs or sprits are unstable when

710-719: A sailing yacht may be either near-shore or passage-making out of sight of land and entails the use of sailboats that support sustained overnight use. Coastal cruising grounds include areas of the Mediterranean and Black Seas, Northern Europe, Western Europe and islands of the North Atlantic, West Africa and the islands of the South Atlantic, the Caribbean, and regions of North and Central America. Passage-making under sail occurs on routes through oceans all over

781-400: A series of broad reaches, punctuated by jibes in between. It was explored by sailing vessels starting in 1975 and now extends to high-performance skiffs, catamarans and foiling sailboats. Navigating a channel or a downwind course among obstructions may necessitate changes in direction that require a change of tack, accomplished with a jibe. Jibing or gybing is a sailing maneuver by which

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852-437: A smooth laminar flow , leading from one to the other in what is called the "slot effect". On downwind points of sail, power is achieved primarily with the wind pushing on the sail, as indicated by drooping tell-tales. Spinnakers are light-weight, large-area, highly curved sails that are adapted to sailing off the wind. In addition to using the sheets to adjust the angle with respect to the apparent wind, other lines control

923-423: A wider range of apparent wind angles than does an ice boat, whose speed is typically great enough to have the apparent wind coming from a few degrees to one side of its course, necessitating sailing with the sail sheeted in for most points of sail. On conventional sailboats, the sails are set to create lift for those points of sail where it's possible to align the leading edge of the sail with the apparent wind. For

994-408: Is a maneuver by which a sailing craft turns its bow into and through the wind (referred to as "the eye of the wind" ) so that the apparent wind changes from one side to the other, allowing progress on the opposite tack. The type of sailing rig dictates the procedures and constraints on achieving a tacking maneuver. Fore-and-aft rigs allow their sails to hang limp as they tack; square rigs must present

1065-487: Is because the river's current flows from south to north, whilst the prevailing wind direction is north to south. Therefore, a boat of that time could use the current to go north – an unobstructed trip of 750 miles – and sail to make the return trip. Evidence of early sailors has also been found in other locations, such as Kuwait, Turkey, Syria, Minoa, Bahrain, and India, among others. Austronesian peoples used sails from some time before 2000 BCE. Their expansion from what

1136-403: Is called weak black liquor and is about 15% dry content. The black liquor is concentrated in a multiple effect evaporator and after the first stage the black liquor is about 20–30%. At this stage it is called intermediate liquor. Normally the soaps start to float in the storage tank for the weak or intermediate liquors and are skimmed off and collected. A good soap skimming operation reduces

1207-486: Is governed by World Sailing with most racing formats using the Racing Rules of Sailing . It entails a variety of different disciplines, including: A saildrone is a type of unmanned surface vehicle used primarily in oceans for data collection. Saildrones are wind and solar powered and carry a suite of science sensors and navigational instruments. They can follow a set of remotely prescribed waypoints. The saildrone

1278-482: Is now Southern China and Taiwan started in 3000 BCE. Their technology came to include outriggers , catamarans , and crab claw sails , which enabled the Austronesian Expansion at around 3000 to 1500 BCE into the islands of Maritime Southeast Asia , and thence to Micronesia , Island Melanesia , Polynesia , and Madagascar . Since there is no commonality between the boat technology of China and

1349-452: Is obtained, with rosin content reduced to 10–35%. By further reduction of the rosin content to 1–10%, tall oil fatty acid ( TOFA ) can be obtained, which is cheap, consists mostly of oleic acid , and is a source of volatile fatty acids. The tall oil rosin finds use as a component of adhesives , rubbers , and inks , and as an emulsifier . The pitch is used as a binder in cement, an adhesive, and an emulsifier for asphalt . TOFA

1420-432: Is often part of a larger plan of navigation . From prehistory until the second half of the 19th century, sailing craft were the primary means of maritime trade and transportation; exploration across the seas and oceans was reliant on sail for anything other than the shortest distances. Naval power in this period used sail to varying degrees depending on the current technology, culminating in the gun-armed sailing warships of

1491-413: Is on a broad reach. Boat velocity (in black) generates an equal and opposite apparent wind component (not shown), which combines with the true wind to become apparent wind. The speed of sailboats through the water is limited by the resistance that results from hull drag in the water. Ice boats typically have the least resistance to forward motion of any sailing craft. Consequently, a sailboat experiences

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1562-461: Is the third largest chemical by-product in a kraft mill after lignin and hemicellulose ; the yield of crude tall oil from the process is in the range of 30–50 kg / ton pulp. It may contribute to 1.0–1.5% of the mill's revenue if not used internally. In the kraft process, high alkalinity and temperature convert the esters and carboxylic acids in rosin into soluble sodium soaps of lignin , rosin, and fatty acids . The spent cooking liquor

1633-474: The Age of Sail . Sail was slowly replaced by steam as the method of propulsion for ships over the latter part of the 19th century – seeing a gradual improvement in the technology of steam through a number of developmental steps. Steam allowed scheduled services that ran at higher average speeds than sailing vessels. Large improvements in fuel economy allowed steam to progressively outcompete sail in, ultimately, all commercial situations, giving ship-owning investors

1704-568: The American Revolutionary War . As Britain attempted to cripple French and Spanish capacities through blockade, they declared naval stores to be contraband. At the time Russia was Europe's chief producer of naval stores, leading to the seizure of 'neutral' Russian vessels. In 1780 Catherine the Great announced that her navy would be used against anyone interfering with neutral trade, and she gathered together European neutrals in

1775-588: The League of Armed Neutrality . These actions were beneficial for the struggling colonists as the British were forced to act with greater caution. Zallen tells in detail how turpentine (and rosin) are produced as naval stores. Pine trees especially in North Carolina were tapped for sap which was doubly distilled to make turpentine and rosin (aka resin)–hence the name tar heels . The trees were scored with

1846-476: The River Tyne to London – which was already being carried out in the 14th century and grew as the city increased in size. In 1795, 4,395 cargoes of coal were delivered to London. This would have needed a fleet of about 500 sailing colliers (making 8 or 9 trips a year). This quantity had doubled by 1839. (The first steam-powered collier was not launched until 1852 and sailing colliers continued working into

1917-409: The motive power for sailing craft. The waves give an indication of the true wind direction. The flag gives an indication of apparent wind direction. True wind velocity ( V T ) combines with the sailing craft's velocity ( V B ) to give the apparent wind velocity ( V A ), the air velocity experienced by instrumentation or crew on a moving sailing craft. Apparent wind velocity provides

1988-508: The saildrones completed the mission, traveling 12,500 miles (20,100 km) over the seven month journey while collecting a detailed data set using on board environmental monitoring instrumentation. In August 2019, SD 1021 completed the fastest unmanned Atlantic crossing sailing from Bermuda to the UK, and in October, it completed the return trip to become the first autonomous vehicle to cross

2059-424: The 1870s to 1900, when steamships began to outpace them economically because of their ability to keep a schedule regardless of the wind. Steel hulls also replaced iron hulls at around the same time. Even into the twentieth century, sailing ships could hold their own on transoceanic voyages such as Australia to Europe, since they did not require bunkerage for coal nor fresh water for steam, and they were faster than

2130-428: The 20th century.) The earliest image suggesting the use of sail on a boat may be on a piece of pottery from Mesopotamia , dated to the 6th millennium BCE. The image is thought to show a bipod mast mounted on the hull of a reed boat – no sail is depicted. The earliest representation of a sail, from Egypt, is dated to circa 3100 BCE. The Nile is considered a suitable place for early use of sail for propulsion. This

2201-641: The Age of Discovery, sailing ships figured in European voyages around Africa to China and Japan; and across the Atlantic Ocean to North and South America. Later, sailing ships ventured into the Arctic to explore northern sea routes and assess natural resources. In the 18th and 19th centuries sailing vessels made Hydrographic surveys to develop charts for navigation and, at times, carried scientists aboard as with

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2272-608: The Atlantic in both directions. The University of Washington and the Saildrone company began a joint venture in 2019 called The Saildrone Pacific Sentinel Experiment, which positioned six saildrones along the west coast of the United States to gather atmospheric and ocean data. A sailing craft's ability to derive power from the wind depends on the point of sail it is on—the direction of travel under sail in relation to

2343-475: The Austronesians, these distinctive characteristics must have been developed at or some time after the beginning of the expansion. They traveled vast distances of open ocean in outrigger canoes using navigation methods such as stick charts . The windward sailing capability of Austronesian boats allowed a strategy of sailing to windward on a voyage of exploration, with a return downwind either to report

2414-579: The Civil War. That made camphine more costly than kerosene. Kerosene first produced as coal oil became abundant after the discovery of oil in Pennsylvania. The major producers of naval stores in the 19th and 20th century were the United States of America, and France, where Napoleon encouraged planting of pines in areas of sand dunes. In the 1920s the United States exported eleven million gallons of spirits. By 1927, France exported about 20 percent of

2485-488: The angle of a fore-and-aft sail with respect to the apparent wind is controlled with a line, called a "sheet". On points of sail between close-hauled and a broad reach, the goal is typically to create flow along the sail to maximize power through lift. Streamers placed on the surface of the sail, called tell-tales , indicate whether that flow is smooth or turbulent. Smooth flow on both sides indicates proper trim. A jib and mainsail are typically configured to be adjusted to create

2556-402: The availability of inexpensive naphtha . Rosin remains in the still after turpentine and water have boiled off. Sailing Sailing employs the wind—acting on sails , wingsails or kites —to propel a craft on the surface of the water ( sailing ship , sailboat , raft , windsurfer , or kitesurfer ), on ice ( iceboat ) or on land ( land yacht ) over a chosen course , which

2627-412: The availability, strength and direction of the wind is key to using its power along the desired course. Ocean currents, tides and river currents may deflect a sailing vessel from its desired course. If the desired course is within the no-go zone, then the sailing craft must follow a zig-zag route into the wind to reach its waypoint or destination. Downwind, certain high-performance sailing craft can reach

2698-400: The boat for the night, and cruising, where one stays aboard. Day-sailing primarily affords experiencing the pleasure of sailing a boat. No destination is required. It is an opportunity to share the experience with others. A variety of boats with no overnight accommodations, ranging in size from 10 feet (3.0 m) to over 30 feet (9.1 m), may be regarded as day sailors. Cruising on

2769-601: The colonial economy. Masts came from the large white pines of New England, while pitch came from the longleaf pine forests of Carolina , which also produced sawn lumber, shake shingles , and staves . In the early 1700s the British Crown was involved in the transplantation of Palatine refuges in Great Britain to the New York Province to produce naval stores. Naval stores played a role during

2840-623: The course. This combination of forces means that it is possible to sail an upwind course as well as downwind. The course with respect to the true wind direction (as would be indicated by a stationary flag) is called a point of sail . Conventional sailing craft cannot derive wind power on a course with a point of sail that is too close into the wind. Throughout history, sailing was a key form of propulsion that allowed for greater mobility than travel over land. This greater mobility increased capacity for exploration, trade, transport, warfare, and fishing, especially when compared to overland options. Until

2911-485: The delivery by sailing ships of the large amounts of grain needed. It has been estimated that it cost less for a sailing ship of the Roman Empire to carry grain the length of the Mediterranean than to move the same amount 15 miles by road. Rome consumed about 150,000 tons of Egyptian grain each year over the first three centuries AD. A similar but more recent trade, in coal, was from the mines situated close to

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2982-411: The destination more quickly by following a zig-zag route on a series of broad reaches. Negotiating obstructions or a channel may also require a change of direction with respect to the wind, necessitating changing of tack with the wind on the opposite side of the craft, from before. Changing tack is called tacking when the wind crosses over the bow of the craft as it turns and jibing (or gybing ) if

3053-466: The early steamers, which usually could barely make 8 knots (15 km/h). Ultimately, the steamships' independence from the wind and their ability to take shorter routes, passing through the Suez and Panama Canals , made sailing ships uneconomical. Until the general adoption of carvel -built ships that relied on an internal skeleton structure to bear the weight of the ship and for gun ports to be cut in

3124-404: The free end points into the eye of the wind and must be controlled to avoid a violent change to the other side; square rigs as they present the full area of the sail to the wind from the rear experience little change of operation from one tack to the other; and windsurfers again have flexibly pivoting and fully rotating masts that get flipped from side to side. Winds and oceanic currents are both

3195-447: The full frontal area of the sail to the wind, when changing from side to side; and windsurfers have flexibly pivoting and fully rotating masts that get flipped from side to side. A sailing craft can travel directly downwind only at a speed that is less than the wind speed. However, some sailing craft such as iceboats , sand yachts , and some high-performance sailboats can achieve a higher downwind velocity made good by traveling on

3266-494: The heeling moment and keeping the boat more upright. There are three common methods of reefing the mainsail: Tall oil Tall oil , also called liquid rosin or tallol , is a viscous yellow-black odorous liquid obtained as a by-product of the kraft process of wood pulp manufacture when pulping mainly coniferous trees . The name originated as an anglicization of the Swedish tallolja ('pine oil'). Tall oil

3337-423: The hull's resistance to heeling, yawing or progress through the water. In their most developed version, square sails are controlled by two each of: sheets, braces, clewlines , and reef tackles, plus four buntlines , each of which may be controlled by a crew member as the sail is adjusted. Towards the end of the Age of Sail, steam-powered machinery reduced the number of crew required to trim sail. Adjustment of

3408-402: The mid 19th century. Sail plans with just fore-and-aft sails ( schooners ), or a mixture of the two ( brigantines , barques and barquentines ) emerged. Coastal top-sail schooners with a crew as small as two managing the sail handling became an efficient way to carry bulk cargo, since only the fore-sails required tending while tacking and steam-driven machinery was often available for raising

3479-416: The motive power for the sails on any given point of sail. It varies from being the true wind velocity of a stopped craft in irons in the no-go zone, to being faster than the true wind speed as the sailing craft's velocity adds to the true windspeed on a reach. It diminishes towards zero for a craft sailing dead downwind. Sailing craft A is close-hauled. Sailing craft B is on a beam reach. Sailing craft C

3550-416: The result of the sun powering their respective fluid media. Wind powers the sailing craft and the ocean bears the craft on its course, as currents may alter the course of a sailing vessel on the ocean or a river. Trimming refers to adjusting the lines that control sails, including the sheets that control angle of the sails with respect to the wind, the halyards that raise and tighten the sail, and to adjusting

3621-404: The sailing ships during this time period were the merchant ships. By 1500, Gun ports allowed sailing vessels to sail alongside an enemy vessel and fire a broadside of multiple cannon. This development allowed for naval fleets to array themselves into a line of battle , whereby, warships would maintain their place in the line to engage the enemy in a parallel or perpendicular line. While

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3692-459: The sails and the anchor. Iron-hulled sailing ships represented the final evolution of sailing ships at the end of the Age of Sail. They were built to carry bulk cargo for long distances in the nineteenth and early twentieth centuries. They were the largest of merchant sailing ships, with three to five masts and square sails, as well as other sail plans . They carried bulk cargoes between continents. Iron-hulled sailing ships were mainly built from

3763-403: The separation time and give a cleaner soap with lower viscosity. This makes the acidulator run more smoothly as well. Most pines give a soap yield of 5–25 kg/ton pulp, while Scots pine gives 20–50 kg/ton. Scots pine grown in northern Scandinavia give a yield of even more than 50 kg/ton. Globally about 2 mill ton/year of CTO are refined. The composition of crude tall oil varies

3834-413: The shape of the boat, especially with a catamaran. As the boat points off the wind, lateral force and the forces required to resist it become less important. On ice boats, lateral forces are countered by the lateral resistance of the blades on ice and their distance apart, which generally prevents heeling. Wind and currents are important factors to plan on for both offshore and inshore sailing. Predicting

3905-614: The shape of the sail, notably the outhaul , halyard , boom vang and backstay . These control the curvature that is appropriate to the windspeed, the higher the wind, the flatter the sail. When the wind strength is greater than these adjustments can accommodate to prevent overpowering the sailing craft, then reducing sail area through reefing , substituting a smaller sail or by other means. Reducing sail on square-rigged ships could be accomplished by exposing less of each sail, by tying it off higher up with reefing points. Additionally, as winds get stronger, sails can be furled or removed from

3976-440: The side, sailing ships were just vehicles for delivering fighters to the enemy for engagement. Early Phoenician, Greek, Roman galleys would ram each other, then pour onto the decks of the opposing force and continue the fight by hand, meaning that these galleys required speed and maneuverability. This need for speed translated into longer ships with multiple rows of oars along the sides, known as biremes and triremes . Typically,

4047-444: The significant improvements in land transportation that occurred during the 19th century, if water transport was an option, it was faster, cheaper and safer than making the same journey by land. This applied equally to sea crossings, coastal voyages and use of rivers and lakes. Examples of the consequences of this include the large grain trade in the Mediterranean during the classical period . Cities such as Rome were totally reliant on

4118-513: The soap content of the black liquor down to 0.2–0.4% w/w of the dry residue. The collected soap is called raw rosin soap or rosinate . The raw rosin soap is then allowed to settle or is centrifuged to release as much as possible of the entrained black liquor. The soap goes then to the acidulator where it is heated and acidified with sulfuric acid to produce crude tall oil (CTO). The soap skimming and acidulator operation can be improved by addition of flocculants . A flocculant will shorten

4189-427: The spaces between planks. Pine pitch was often mixed with fibers like hemp to caulk spaces which might otherwise leak. Presently, pine compounds produced by the naval stores industry are used to manufacture soap , paint , varnish , shoe polish , lubricants , linoleum , and roofing materials. The Royal Navy relied heavily upon naval stores from American colonies, and naval stores were an essential part of

4260-402: The spars, entirely until the vessel is surviving hurricane-force winds under "bare poles". On fore-and-aft rigged vessels, reducing sail may furling the jib and by reefing or partially lowering the mainsail, that is reducing the area of a sail without actually changing it for a smaller sail. This results both in a reduced sail area but also in a lower centre of effort from the sails, reducing

4331-434: The speed between the starting and ending points of the route is called the speed made good and is calculated by the distance between the two points, divided by the travel time. The limiting line to the waypoint that allows the sailing vessel to leave it to leeward is called the layline . Whereas some Bermuda-rigged sailing yachts can sail as close as 30° to the wind, most 20th-Century square riggers are limited to 60° off

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4402-416: The true wind direction over the surface. The principal points of sail roughly correspond to 45° segments of a circle, starting with 0° directly into the wind. For many sailing craft, the arc spanning 45° on either side of the wind is a "no-go" zone, where a sail is unable to mobilize power from the wind. Sailing on a course as close to the wind as possible—approximately 45°—is termed "close-hauled". At 90° off

4473-427: The use of sailing vessels for commerce or naval power has been supplanted with engine-driven vessels, there continue to be commercial operations that take passengers on sailing cruises. Modern navies also employ sailing vessels to train cadets in seamanship . Recreation or sport accounts for the bulk of sailing in modern boats. Recreational sailing can be divided into two categories, day-sailing, where one gets off

4544-679: The voyages of James Cook and the Second voyage of HMS Beagle with naturalist Charles Darwin . In the early 1800s, fast blockade-running schooners and brigantines— Baltimore Clippers —evolved into three-masted, typically ship-rigged sailing vessels with fine lines that enhanced speed, but lessened capacity for high-value cargo, like tea from China. Masts were as high as 100 feet (30 m) and were able to achieve speeds of 19 knots (35 km/h), allowing for passages of up to 465 nautical miles (861 km) per 24 hours. Clippers yielded to bulkier, slower vessels, which became economically competitive in

4615-402: The wind passes over the stern. A sailing craft can sail on a course anywhere outside of its no-go zone. If the next waypoint or destination is within the arc defined by the no-go zone from the craft's current position, then it must perform a series of tacking maneuvers to get there on a zigzag route, called beating to windward . The progress along that route is called the course made good ;

4686-419: The wind, a craft is on a "beam reach". At 135° off the wind, a craft is on a "broad reach". At 180° off the wind (sailing in the same direction as the wind), a craft is "running downwind". In points of sail that range from close-hauled to a broad reach, sails act substantially like a wing, with lift predominantly propelling the craft. In points of sail from a broad reach to down wind, sails act substantially like

4757-540: The wind. Fore-and-aft rigs are designed to operate with the wind on either side, whereas square rigs and kites are designed to have the wind come from one side of the sail only. Because the lateral wind forces are highest when sailing close-hauled, the resisting water forces around the vessel's keel, centerboard, rudder and other foils must also be highest in order to limit sideways motion or leeway . Ice boats and land yachts minimize lateral motion with resistance from their blades or wheels. Tacking or coming about

4828-416: The world's resin. Today naval stores are recovered from the tall oil byproduct stream of Kraft process pulping of pines in the US, though tapping of living pines remains common in other parts of the world. Turpentine and pine oil may be recovered by steam distillation of oleoresin or by destructive distillation of pine wood. Solvent extraction of shredded stumps and roots has become more common with

4899-685: The world. Circular routes exist between the Americas and Europe, and between South Africa and South America. There are many routes from the Americas, Australia, New Zealand, and Asia to island destinations in the South Pacific. Some cruisers circumnavigate the globe. Sailing as a sport is organized on a hierarchical basis, starting at the yacht club level and reaching up into national and international federations; it may entail racing yachts , sailing dinghies , or other small, open sailing craft, including iceboats and land yachts. Sailboat racing

4970-479: Was invented by Richard Jenkins , a British engineer, founder and CEO of Saildrone, Inc. Saildrones have been used by scientists and research organizations like the National Oceanic and Atmospheric Administration (NOAA) to survey the marine ecosystem, fisheries, and weather. In January 2019, a small fleet of saildrones was launched to attempt the first autonomous circumnavigation of Antarctica. One of

5041-667: Was slower. The value of many was protected by life insurance . Wilmington, NC became a center of the camphene industry. In cities, gaslighting was also available, but used by the upper classes. Camphine was the fuel of the average family. Zallen reports that after Ft. Sumter , turpentine producers were cut off from major markets. Emancipation left them without manpower to collect and process turpentine. The camps were flammable. Many were burned in William Tecumseh Sherman ’s march from Savannah to Goldsboro, NC . Congress also imposed taxes on alcohol to pay for

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