IV 
CONTENTS. 
NO. PAGE 
Y. On the Magnetism of the Copper-Manganese-Tin Alloys under 
varying Thermal Treatment. By Alexander D. Boss, 
M.A., B.Sc., Lecturer on Natural Philosophy in the 
University of Glasgow, and Bobert C. Gray, M.A., 
Houldsworth Besearch Scholar, University of Glasgow, . 85 
{Issued separately December 22, 1910.) 
YI. Abnormal Bone Growth in the absence of Functioning 
Testicles. By A. C. Geddes, M.D., Professor of Anatomy 
at the Boyal College of Surgeons in Ireland. (With Three 
Plates), 100 
( Issued separately December 26, 1910.) 
VII. The Development of the Germ Cells in the Mammalian Ovary, 
with special reference to the Early Phases of Maturation. 
By A. Louise M c Ilroy, M.D., D.Sc. (From the Physiological 
Laboratory, University of Glasgow.) ( Communicated by 
Professor Noel Paton.) (With Six Plates), . . 151 
{Issued separately December 29, 1910.) 
VIII. A Dynamic Method for Measuring Vapour Pressures, with its 
Application to Benzene and Ammonium Chloride. By 
Alexander Smith and Alan W. C. Menzies, . . 179 
{Issued separately December 29, 1910.) 
IX. A Quantitative Study of the Constitution of Calomel Vapour. 
By Alexander Smith and Alan W. C. Menzies, . .183 
{Issued separately December 29, 1910.) 
X. The Variation of Young’s Modulus under an Electric Current. 
Part III. By Henry Walker, M.A., D.Sc. {Communicated 
by Professor J. G. MacGregor, F.B.S.), . . . 186 
{Issued separately .) 
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