374 



Transactions. — Chemistry and Physics. 



It is evident that there is no uncombined carbon in the 



clear resin, and yet some is always left after distillation. A 



good deal of water is given off, only a negligible quantity of 



which can consist of hygroscopic water, since the resin is all 



but impervious to water and not hygroscopic, for I ground 



some to an exceedingly fine powder and weighed — 



Weight in Differ- 

 Grams. 



ence. 



030 



0018 



17-023) 

 After twenty-four hours in desiccator = 16-993; 



After a week exposed to the air =17 - 011 



It thus contains a very small proportion of water, and, 

 when perfectly dry, absorbs moisture very slowly, even when 

 in a finely powdered condition. So all the water must be due 



