قراءة كتاب A Pictorial Booklet on Early Jamestown Commodities and Industries
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A Pictorial Booklet on Early Jamestown Commodities and Industries
fitteth them on with a Mallet 16, and a Driver. 17.
Courtesy Folger Shakespeare Library, Washington, D. C.
Making Barrels in the Seventeenth Century
The engraving, made in 1685, shows two coopers making a barrel. A cooper's shop at Jamestown may have been somewhat similar to the one shown.
From Orbis Sensualium Pictus by Johann Comenius (London, 1685).
POTASH AND SOAP-ASHES
Soap-ashes and potash were among the first commodities produced by the English in America. Potash was made from soap-ashes (wood ashes, especially those obtained from burning ash and elm) and was used at Jamestown for making both soap and glass. Soap-ashes were exported to England as early as 1608, and throughout the remainder of the century it appears that both potash and soap-ashes were shipped to the mother country, As early as 1621 soap-ashes were selling for six shillings to eight shillings per hundred weight, whereas potash was bringing between thirty-five shillings and forty shillings per hundred weight.
Although few contemporary records are available which mention the profit made from the sale of soap-ashes and potash by the Virginia planters, it is known that some small returns were made from time to time throughout the seventeenth century. While tobacco was the important money-making crop, the part played in the economy of the Jamestown settlement and environs by other commodities—including soap-ashes and potash—should not be overlooked.
In the conjectural picture Jamestown settlers are shown making potash. Five steps were necessary:
1. A pile of firewood (billet-wood) was burned until grey ashes
were formed. The best woods were oak, ash, poplar, hickory, elm,
hazel, and beech. Old hollow trees, if not dead, were especially
desirable.
2. After several pounds of ashes had accumulated, they were leached
(boiling water was percolated through the ashes), resulting in a
very strong alkali solution known as ley or lye.
3. The alkali solution (or ley) was strained through a coarse linen
cloth to keep out any coarse materials (such as small pieces of
half-burnt wood), that might happen to remain in the ashes.
4. The strained ley solution was poured in an iron pan, and
evaporated over a quick fire—almost to dryness.
5. The residue remaining in the bottom of the pan was removed and put
into an iron pot. The pot was put over a strong fire till the matter was
melted. Immediately the melted matter was poured out upon an iron plate,
where it soon cooled and appeared in the form of a solid lump of
potash.
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To a chemist the somewhat primitive methods described are very obvious ones in making an impure form of potash. The combustion of hardwoods resulted in an ash residue containing the desired potassium carbonate. Some purification was obtained by leaching the ash residue in boiling water and then filtering the "ley" through a coarse linen cloth. The filtered "ley" was evaporated in an iron pot to dryness. The potash resulting was now ready for making soap and glass, as well as for other industrial uses.
PITCH AND TAR
Pitch and tar—used by shipbuilders from time immemorial for caulking and covering seams of vessels—were made at Jamestown as early as 1608. After the second supply ships reached Jamestown in October, 1608, one of the settlers wrote:
No sooner were we landed, but the President dispersed [as] many as were able, some for glasse, others for pitch, tarre, and sope ashes.
A month later trials of pitch and tar were carried to England by Captain Christopher Newport, as reported by Thomas Studley, one of the original planters:
Captaine Newport being dispatched with the tryals of pitch, tarre, glass, frankincense and sope ashes, with that clapbord and wainscot [which] could bee provided ... returned for England.
As pitch and tar were made in Virginia throughout the seventeenth century, mainly for exporting to England, it appears that the colonists made some profit from the sale of such products.
Pitch and tar were obtained from pine trees, one of the common trees in the Tidewater Virginia woods. Tar is an oily, dark colored, product obtained in the destructive distillation of pine wood. In Virginia it was commonly made from the resinous roots and wood of various pines. The wood was heaped into a conical stack depressed at the center, covered with earth, and fired. The tar ran into a hollowed-out place in the soil beneath the stack of wood. Pitch was a dark-colored viscous substance obtained as a residue in distilling pine tar, and widely used for caulking seams of boats.
It is of interest that the early settlers named the large swamp north of the town area "Pitch and Tar Swamp." Undoubtedly the large pine trees which bordered the swamp were used for making pitch and tar, as well as turpentine and resin.
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Conjectural sketch
IRON
It is possible that small amounts of iron were smelted at Jamestown in earth ovens or Catalan-type furnaces during the early years of the colony. In 1955 archeologists unearthed a circular-shaped pit which contained charcoal, burned oyster shell, iron ore, pieces of smelted iron, and slag. It is known that some iron was made in earth ovens in England during the early years of the seventeenth century, where iron was smelted in holes dug in the ground. The fires were fed with logs and charcoal, and the heat was increased by use of large foot bellows. The same method may have been used at Jamestown; or it is possible that the "earth oven" may have been used for hardening bar iron imported from England, as much bar iron received from the mother country was very soft and unsatisfactory for making tools.
The conjectural sketch shows Jamestown colonists making iron in a primitive earth oven or furnace.
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Conjectural sketch
A JAMESTOWN BLACKSMITH SHOP
A blacksmith, James Read by name, was a member of the first group of