8 + 



GLANDS AND 



Sect. VI, 8. i, z,p. 



( 



t 



made hot, 



to 



when cold the coafiftence of b 





Embafly to Chuaa, Vol.1, p 



54 



Vlll. I. Turpentines or ballams, relins, and efTen 



are ana 



t) 



liibi 



ft 



getable fecretions laft mentioned, in their being inad- 

 iter. Thofe vegetables, which contain in their veflels 



bear cold climates the beft : becaufe 



h 



water 



froz( 

 bottl 



occupies moi 



th 



before 



d hence burfls th 



contain it ; in the fame manner when any fucculen 

 ble is frozen, its veiTels become burfl or bruifed by the expan 



; on this account thofe part 



fion of the ice, and the plant is deflroyed 



* 



of plants, which are the mofl juicy, as the laft flioots of vines 



arc 



Hence many of the evergreen trees of 



fooneft deftroyed in winter. 



this climate are replete with turpentine or refin, which by 



the place of fo much water, contributes to their hardinefs. 



alfo a partial fee 

 plants 



of balfam or 



Th 



pentine in many deci; 



o 



for the purpofe of defending their buds during the win 



both from froft: and from wet. which 



t) 



(h, as on the buds of the populus tacamah 



pelkd by. their balfam 



2. The ballams and refi 



of the (hop 



either extraded from 



I tree; thus what is 

 called Venice turpentine is obtained from the larch by woundln^- the 



r r 



the wood by fire, or exfude from wounds of th 



bark about two feet 

 Sandarach 



from the ground 



d catching it- as it exfud 



ther juniper ; and th 



procured from common juniper, and incenfe from 



reafon to believe that bitumen 



or 



pet 



um, with, jet, amber, and all the foffile coal in the world, owes 

 flammable part to the recrements of deftroyed forefts of terebinthi- 

 ite vegetables, fo important to the prefent' race of mankind has been 



this vegetable fee 



o 



D* 



The efTential 



far 

 flo 



or 



i c 



fi 



are fometimes raifed by diftillation from baU 

 f turpentine.; but are chiefly extracted from 



prevent the depredations of 



where their office has been to 

 though many of them are fo agreeable to the human fenfe of 



fmell 



/ 



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