416 



BOTANY. 



[Sect. XII ■ 



one occaHjon, bring from ti e adjacent shores of Africa a 

 gum-resinj conBtituted of the dead steips of a Geranium 

 allied to, if not identical with, the South African Gera- 

 ni :m spinosui^ o^ linnseus (JMonsonia Burmanni^ D, C). 

 An account of this substance appeared in • Eden's 

 Voyage in sea.rch for Nitre and the true nature of Guano. 

 London, 1846/ None is now to be procured in England, 

 and it is believed that the nature and property of this 

 singular gum-resin were not examined. Perfect speci- 

 mens of the gum-resin and the plant are desired. 



N.B. Much information remains to be obtained re- 

 pectin 

 western Africa. 



s 





the useful woods, gums, dye-stuffs, Ac, of 



America. 



SarsapariUa. — To ascertain the plants yielding the 

 several sorts of commerce, especially those called Ja- 

 maica Sarsaparilla (said to be the produce of the Mosquito 

 lore, and to be brought to England via Jamaica), Lima 



Sarsaparilla, which comes to us from Costa Rica (can this 

 be extracted from the plant which yields the Jamaica 

 Sarsaparilla ?), Honduras Sarsap-^rilla, and the BraziHan 

 Sarsaparilla. 



Balsam of Copaiva is imported from several parts of 

 Brazil : it varies somewhat in properties, and is con- 

 sidered to be the produce of several species of the genus 

 Covaifera, 



It is desirable to obtain the balsam of each 

 >ecies, with a specimen in flower and leaf, and, if 

 possible, in fruit, of the tree affording it, and the name of 

 the district where the tree 

 lation there. 



?rows^ and its native appel- 



/ 



