‘PROCEEDINGS 
OF 
THE ROYAL SOCIETY. 
_ Series B. Vol. 80. No. B 540. 
BIOLOGICAL SCIENCES. 
CONTENTS. 
Page 
The Glycogenic Changes in the Placenta and the Foetus of the Pregnant 
Rabbit: a Contribution to the Chemistry of Growth. By J. LOCHHEAD, 
M.A., M.D., B.Sc. (Carnegie Scholar), and W. CRAMER, Ph.D., D.Sc. | 
(Lecturer on Physiological Chemistry, University of Edinburgh) . . 263 
On the Maturation of the Ovum in the Guinea-pig. By J. E. SALVIN 
MOORE, A.R.C.S., F.L.S., Professor of Experimental and Pathological — 
Cytology, Liverpool, and Miss F. TOZER, B.Sc. London. (Plates 5—7) . 285 
The Life-history of Trypanosoma equiperdum. By J. E. SALVIN MOORE, 
Professor of Experimental and Pathological Cytology, University of 
Liverpool, and ANTON BREINL, Director of the Runcorn Research 
Laboratories, Liverpool School of Tropical Medicine. (Plates 8 and 9) 288 
~The Alcoholic Ferment of Yeast-juice. Part I]]—The Function of Phos- 
phates in the Fermentation of Glucose by Yeast-juice. By ARTHUR 
HARDEN and WILLIAM JOHN YOUNG (Biochemical Laboratory of 
the Lister Institute of Preventive Medicine) . ; : 2 299 
Studies on Enzyme Action. XI.—H)ydrolysis of Raffinose by Acids and 
Enzymes. By H. E. ARMSTRONG, F.RS., and W. H. GLOVER, Ph.D. 312 
Studies on Enzyme Action. XII.—The Enzymes of Emulsin. By 
H. E. ARMSTRONG, F.R.S., E. F. ARMSTRONG, D.Sc., and E. HORTON, 
BeoGe. : ; : : ; : : ‘ ; : 6a a eel 
A Further Note on the Nutrition of the Early Embryo: with Special 
Reference to the Chick. By E. EMRYS-ROBERTS, M.B., Ch.B. Victoria 
and Liverpool, Sub-curator of the Pathological Museum (Gynecological 
eas Section), Eaaeraly of Liverpool . : : i : : ; » 332 
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