V 



I. 



% 





^^y oth 



S 



ers 



) 



eef. 



"^■■petuall 



y 





sm 



ind for the 

 ^^ ; as the 



• ; thofe of 

 ; thofe of 

 laft might 

 :he bre We- 

 lti »ated on 

 purpofes, 



r 



the public 



r 



er valuable 



I 



, bitter as 

 fuccefs, as 

 (J ry barren 



fuvian 



bark 



rewerles 



js, 



) 



fraxlniis 

 fpofltane- 



ing ai^' 



ipal 



xvii 



eft- 



in.)!?" 



I 



fera 



> 



bavs 



Sect. XVIII. 1.5 



h 



be 



much 



LEAVES AND WOOD. 5^3 



cultivated, and extenfively ufed ; and a fpecies of 



poWgonum is faid to be much cultivated in China for the lacne pur- 

 pofes as indigofera by fir G. Staunton ; to which may be added the fo- 



f lichen fruaicofus, Or archil, a whitilh lichen brought from 



the rocks of the Canary Iflands, which gives a beautiful bloom 



Oth 



colours, but 



fel 



ery 



fug 



L 



(Te 



th 



Swedifli Tranfadions, that 



th 



arch 



mofs is to be found on the 



eftern coafts of England ; and it is faid, that the archil is now pre 

 pared by MeiTrs. Gordens at Leith near Edinburgh from a fpecK 

 found in the Highlands of Scotland. Encyclopedia Bntannica. Art. 

 Archil The manner of cultivation and of the extradion of the co- 

 i^n.lna matter from the leaves of thefe plants may be alfo ken in 



BomarVs Didionaire Raifonne, and in Chambers's Encycloped 



it probable, that many other plant 



hedyfarum, faintfoi 



th 



broad thick leaves of Phytolacca, might yield a fimilar material to th 

 of indi-o, woad, and weld, if properly cultivated and prepared, as we 



as 



kinds of moffes or lichens to that above mentioned 



The green colour of perhaps all vegetables, as w 



as 



f thofe 



from which indigo and woad are produced, is owing to the blue fe 



which has been obtained for 



principally from thofe 



plants ; and to a yellow material, which is more fu 

 my decompofed, which yellow may pofhbly be 



as it fubiides fr 



Thi 

 i th 



e 



blue fecula is fimply obtained from 

 fluid, in which the plant is fulTered to ferment; and is obtained from 

 woad along v\ ith the cellular parts of the leaves during their fermen- 

 tation in water, and beaten into a mafs. It is probable that the blueil 

 kinds of vegetables may contain the moft of this fecula. 



For domefllc purpofes the juice of the fage-leaf, falvia^ ofiRcinalis, 



)ur to cheefe ; and the 

 to colour the green uf- 



quebaugh. a favourite dram with the IriOi vulgar. And it is proba- 



has been ufed both 



eive colour and fl 



juice of fpinach is employed, I am informed 





ble, that the leaf of th 



> 



hich bears purple grapes, migh 

 3U ^ 



fimi 



y 



X 



