Manchester Memoirs, Vol. xlv. (1900), No. % 3 



In no published work have we been able to discover 

 any mention of the part which fineness plays in connection 

 with the solubility of fritts. 



Fig. I. 



At the outset of the work our attention was called 

 to the possible influence of surface by the following 

 circumstance. A fritt was ground in an agate mortar 



