THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. XV. (I.S.), No. 42. MAT, 1919. 



POSSIBLE CAUSES OF VARIATION IN THE 

 QUANTITY AND QUALITY OF <DOWS' MILK. 



E. J. SHEEHY, F.R.C.Sc.L, 



DEMONSTEATOE IN ZOOLOGY IN THE BOYAL COLLEGE OF SCIENCE, DUBLIN. 



[COMMUNICATED BY PROFESSOR JAMES WILSON, M.A., B.SC.] 



[_A uthors alone are responsible for all opinions expressed in theirCommunioaiion$.~\ 



DUBLIN: 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY, 



LE1NSXKR HOOSE, DOBLIN. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COVEKT GARDEN, LONDON, W.C. 



1919. 



Price Sixpence. 



