Sect. XII.] 



BOTANY. 



417 



1^ 



h^ 



*!. 



r 



m 



Balsam of Tolu and Balsam of P 



It may be said 



of these balsa^ns, as of tbe Storax and Liquidamhay^ of tii 



a 



EaBt. that much confusion exists with regard to the 



^'9 



substances so called, the same name being applied in 



i^v.v.o, and different 



respectiyely 



ferent places to different substances 

 names to the same substance. The ti 

 yielding^ the countries producing, the mode of obtaining, 

 ihiQ native names and the local ones of these article 



2 



should be carefully sought and ascertained : samples of 

 the products must accompany the specimens of the trees. 



YellotV'Bm'k^ Royal Yelloiv-Bark or Calisaya^ the 

 produce of La Paz, requires to be identified with the tree 

 which yields it. Specimens of the tree in fruit, in flower, 

 and leaf, of the stems with the bark on and the bark 



removed, should be sent along with the description- 



Ipccacuan, Fahe.—'Yvom. Brazil (the native country 

 also of the true Ipecacuan, Cephaelis Ipecacvmilia) a 

 "false ipecacuan " is derived. What plant produces the 

 latter? What is its native name, and may it not be 

 equally valuable with the true ? 



Cascarilla Bark. — It is important to trace the cascarilla 

 bark of English commerce (from Jamaica, or the Ba- 

 hamas ?) and that of Continental commerce (probably of 

 Vera Cruz) to their true source. Are they derived from 

 a species of Croton ? and what particular kind ? 



Coca of Peru, — Ascertain the facts as to the con- 

 sumption and effects of this substance (the foliage of 

 Ervthroxvlon Coca : see a loi 



Botanical Mag. 



account in the Companion 



). A quantity would b 



mniation, not less than son 



e 



interesting for 



T 3 





