472 H. G. CHAPMAN. 
It is proposed to deal in a later paper with the physical 
cause of this peculiarity. 
I beg to record my indebtedness to Professor Sir Thomas 
Anderson Stuart, in whose laboratory this research was 
undertaken, to W. M. Hamlet, EKsq., for much valued 
criticism, to the Nestle and Anglo-Swiss Condensed Milk 
Company for the opportunity to make these investigations 
and to Mr. P. N. Woollett for much assistance in the 
conduct of these analyses. 
