ANALYTICAL EVIDENCE. 313 



NOTE XXXVIII. P. 168. 



COMPOSITION OF SOLANINE FROM THE BUDS OF 

 GERMINATING POTATOES, a 



Blancbet. 



Carbon .... 62-11 

 Hydrogen . . . 8-92 

 Nitrogen .^ . . . 1-64 

 Oxygen .... 27-33 

 a Ann. der Pharm., VII., 150. 



NOTE XXXIX. P. 168. 



COMPOSITION OF PICROTOX1NE. a 



Francis.* 



Carbon . 60-26 



Hydrogen . . . 5-70 

 Nitrogen .... 1-30 

 Oxygen . . . 32-74 



a In another analysis, M. Francis obtained 0-75 per cent, of nitro- 

 gen. The picrotoxine employed for these analyses was partly ob- 

 tained from the manufactory of M. Merck, in Darmstadt, and was 

 partly prepared by M. Francis himself; it was perfectly white, and 

 >eautifully crystallized. Regnault, as is well known, found no nitro- 

 gen in this compound. 



NOTE XL. P. 168. 

 COMPOSITION OF QUININE. 



Liebig.* Calculated 



CM H 12 N0 2 . 



Carbon . . . 75-76 74-39 



Hydrogen . . 7-52 7-25 



Nitrogen . . .8-11 8-62 



Oxygen . . 8-62 9-74 

 27 



