THE PHYSIOLOGY OF 

 REPRODUCTIOlSr 



BY 



FRANCIS H. A. MARSHALL 



M.A. (Cantab.), D.Sc. (Edin.) 



FELLOW OF CHRIST'S COLLEGE, CAMBRIDGE, AND DNIVEESITY LBOTUKER 

 IN AGKICDLTDEAL PHYSIOLOGY 



WITH A PREFACE BY 

 Professor E. A. SCHAFER, Sc.D., LL.D., F.R.S. 



AND CONTRIBUTIONS BY 

 WILLIAM CRAMER, Ph.D., D.Sc. 



AND 



JAMES LOCHHEAD, M.A., M.D., B.Sc, F.R.C.S.E. 



WITH ILLUSTRATIONS 



LONGMANS, GREEN AND CO. 



39 PATERNOSTER ROW, LONDON 



NEW YORK, BOMBAY, AND CALCUn'A 



1910 



All rights reserved 



