86 THE ROYAL SOCIETY OF CANADA 



When crystallized from water bromocamphorsulphonic acid 

 contains one molecule of water. This was removed by keeping the 

 acid in a vacuum of 0-01 mm. for several days, and this material, 

 shown by analysis to be anhydrous, was used in the experiments. 



Unfortunately there are no compounds with the alcohols or ethers 

 analogous to those formed by the halogen hydrides. The acid is but 

 sparingly soluble in ether and crystallizes without ether of combination. 

 It is very soluble in alcohol, but shows no evidence of combination. 



McGill University, 



Montreal, April, 1915. 



