OCR Text |
Show NORWAYSPRUCE FIR TREE. 779 boiling of the native resin is continued till the water is wholly evaporated, and wine vinegar is at this time added, a substance named Colophonium is formed. Burgundy pitch, which is chiefly imported from § “ony, is of a solid consistence, yet s soft, of a reddish brown co- Jour, and not disagreeable in smell. ely external use, and was formerly an ingredie n several ments and plasters. confined to oint- In inveterate coughs, affections of the lungs, and other internal complaints, plasters of this resin, by acting as a topical stimulus, are frequently found of considerable serundypitch is collected, accor to Tingry, from the Pinus picea, or spruce fir tree. The resinous juice whick exudes from this species is less flui the proper turpentines. i he peasants, strained through cloths, and put in istence be too thick, it is mixed overthe fire with alittle turpentine andoil of turpentine. RUCE FIR TREE. ABIES. Class XXI. Moneecia. Essent. Gen. Cuar. Spec. Cnar. Order 1X. Monadelphia. Sameas the first. Leaves solitary, nearly square, acute, distichous: Branches From the Pir the Pinus sylvestris, in warmseasons and S,a resinous juice exudes spontancously, which hardens into tears by exposureto the air. It is the Thus of the London P} the Resina alba of the Dublin, or common fra It is a solid brittle resin, brought to us in tears or , of a brownish oryellowish colour on the outside ; internally whitish, o1 iegated with whitish specks, of a bitterish, acrid, not agreea ste, with little smeil. beneath naked: Cones cylindrical. — rE DESCRIPTION. ann cane A sau tree. Leaves short, upon the older branches incine in opposite directions. Cones cylindrical, dark-coloured. HISTORY. 5 . loar tenacious fluid issues, which concretes into a resinous substance known bythe nameof resina abietis. This, after being boiled in water, and strained through a linen cloth, is called in the . in os : : . ; the opposite side. The operation is then recommenced clese to the edge of the former wound, which bythis time is nearly closed. This tree is supposed to be native of Scotland, common10 Norway, andflowers in May. Uponan incision being> madeinto the bark of this tree, a cieal ¢ about nine feet high, in about four years. oa +1] y Tt harmacopecias Pix burgundica, or Burgundy pitch. » i ut C if the But itt cond kind} a series of wounds beginning at the botf the bark, is commonlyeffected same operation is then repeated on A tree workedin this manner will survive, andfur turpentine, for near a century. ‘The juice which flows from these wounds during.summer is collected in a small cavity, formed in the earth at the bottom of the incisions, from which 111s occasionally removed into proper reservoirs previous toits Purification, As the trees exude very little juice during cold Weather, no newincisions are made in winter; but the old ones 6° covered with a soft resinous crust, (called darras, whenit is |