SPECIFIC VOLUME OF CAMPHOR AXn OF BORXEOL. 327 



cnniphor itself inny ho :i ketone, niid iheii tlie lonnulu 1, 1 or .") mny 

 represent its eonstittition, as any one of the remaining formula^ would 

 represent it as an oxide. Kanonnikow,* liowever, who determined the 

 refraction equivalent of camphor and of its allied compounds by 

 applying Bruhl's method, states that camphor has no double union 

 between carbon atoms. Hence it may be concluded that one of the 

 formula? 4 and 5 represents the constitution of camphor, and borneol 

 is its corresponding alcohol. 



* Ber. il. dent. chem. Gesell. XVI -3051. 



