ANALYTICAL EVIDENCE. 



297 



a The starch employed for the analyses, made by Strecker and Ortigosa. 

 was prepared from the chemical laboratory at Giessen, from the respective 

 seeds, bulbs, and fruits. 



NOTE (12), p. 71. 

 COMPOSITION OF GRAPE SUGAR. (STARCH SUGAR.) 



From grapes. a From starch.* From honey.c Calculated. 

 DeSaussure. Prout Cu HuOu 



Carbon ... ' 36'7l 37-29 36'36 36-80 



Hydrogen 6'78 6-84 7'09 7'01 



Oxygen... 56'51 55.87 56'55 56'19 



a Ann. de Chimie, XI., 381. 

 b Ann. of Philosophy, VI., 426. 

 c Philosoph. Trans. 1827, 373. 



