322 



M. KUHARA 



moment the temponiturc oi'tlic Ji([iiid reached 205.8° or 207.0° (hoil- 

 ing j)oints of their vapours), the stopper was instantly closed and the 

 bottle filled with the liquid was taken out, cooled and weighed. These 

 experiments were conducted under a higher barometric pressure than 

 the normal, all the measurements being made by means of the cor- 

 rected thermometer. The specific gravity was calculated according to 

 the following formula referring to the water of 4°. 



Specific gravity = y^^J^^^r^,_^^^ 



]V = Weight of the liquid camphor or liorneol at T. 



T = Boiling point of camphor or borneol. 



T' ^= Volume of water at t (or the capacity of the bottle at /). 



t = Temperature when the bottle filled with water was 

 weighed. 



8/3 = Coefficient of the cubical expansion of glass = 0.0000251. 



I. Experiments on Camphor CioHj^O 



The following three experiments were performed with a bottle of 

 the capacity of 6.28114 c.c. at 30.5°. 



( 1 ) Cainplior in the bottle weighed 5.1304 grins at 205.3°. 



V - / 55 11 11 11 11 O.tUoJ ,, ,, ,, 



r 8 "l 5 US') 



\ '' ) 11 11 11 11 11 ''• 1 1^'^'' 11 11 11 



The fourth experiment was performed with a bottle of the 

 capacity of 2.98632 e.c. at 40.5°. 



( 4 ) Cam])hor in the bottle weighed 2.4252 grins ;it 205.3°. 



Seven inore experiments were performed with a bottle of the 

 ca))aeity of 2.7451.S c.c. at 40.5°. 



( 5 ) C;unphor in tlie l)..ttle weighed 2.2400 grins :il 205.3°. 



