266 H. S. H. WARDLAW. 
In conclusion I wish to express my indebtedness to Sir 
Thomas Anderson Stuart, in whose laboratory this work 
was done, and to thank Assistant-Professor Chapman for 
the advice and encouragement he has given me during the 
work. 
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Note.—'The milk used for the experiments described in the 
author’s paper on the “Nature of the Deposit obtained from Milk 
by Spinning in a Centrifuge,” p. 152, this volume) was mixed milk 
about twelve hours old, obtained from a city milk vendor. 
