SPECIFIC VOLUME OF CAMPUOi; AXD OF BORXEOL. 

 CulciiJatwl. Found. 



325 



Ca 



Kopp 



Eamsay 



3 X U =4:2 



3 X 11 =83 )9(i 95.8 95.9 



X 3.5-21 



I tried to ap})]}" tliese value.'!! of" carbon and liydrogen and Kopp's 

 values of oxygen {l'2.'J and 17.8) to eauiphor and borneo], supposing 

 each to C(jnsist of a closed chain of six carbon atoms like benzene, and 

 I foinid that the calculated specific volumes are almost concordant 

 ^vi(ll those observed. 



Camphor. Borneol. 



Calculated Fouu'l 



Calculated 



Found 



c 



3 - 3 X 14 



C, = 7x 11 



Hl,; = l() X 3.5 



= 1 X 12.2 



187.2. ..187.42 



189.8. ..190.5 



Cs = 3 X 14 

 C, = 7 X 11 

 Hi, = 18 X 3.5 

 U =^ 1 X 7.8 



I tried farther to compute the specific volumes of some of the 

 benzene derivatives whose experimental numbers are already known, 

 by applying similar method of calculation to them, thus : 



Found. 



Calculated. 



Benzene 

 Phenol 



Kopp 



95.8 

 103.(3 



Ramsay 



95.9 

 106.9 



Yoshida 



C = 14&11; C=11;H=5.5: 



H = 3.5; = 1:>.247.8 



0= 12.2 & 7.8 



Benzylalcohol . 123.7 

 Benzaldehyde . 118.4 

 Ethyl benzoate 172.4-174.8 

 Benzoic acid... 126.9 

 Naphthalene... 149.2 ... 



— ... 96.0 ... 99.0 



— ... 103.8 ... 106.9 



— ... 121.8 ... 128.8 



— ... 119.2 ... 122.2 

 163.1*... 162.0 ... 174.0 



— ... 127.0 ... 130.0 



— ... 150.0 ... 154.0 



* This number was observed according to Ramiay's method by Mr. H. Yoshida, Science 

 College, Imperial University of Tokio. 



