PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF EDINBURGH. 
SESSION 1907-8. 
Part VIII.] YOL. XXVIII. [Pp. 593-656. 
CONTENTS. 
NO. PAGE 
XXXVI. The Middle Cells of the Grey Matter of the Spinal Cord. 
By J. H. Harvey Pirie, B.Sc., M.D., M.R.C.P. Ed. 
Abstract of Thesis for the Degree of M.D. Edin. 
Univ., 1907. (From the Pathological Department of 
the Royal Infirmary , Edinburgh.) ( Communicated 
by Dr Alexander Bruce.) (With Two Plates), . 595 
( Issued separately September 2, 1908.) 
XXXVII. On a Sensitive State induced in Magnetic Materials by 
Thermal Treatment. By James G. Gray, B.Sc., 
Lecturer on Physics in the University of Glasgow, 
and Alexander D. Boss, M.A., B.Sc., Assistant to the 
Professor of Natural Philosophy in the University of 
Glasgow. Part II. ( Communicated by Professor 
A. Gray, F.R.S.), ..... 615 
{Issued separately September 1, 1908.) 
XXXVIII. The Preparation of a Glass to conduct Electricity. By 
Charles E. S. Phillips, . . . . . 627 
{Issued separately October 12, 1908.) 
[ Continued on page iv of Cover. 
EDINBURGH : 
Published by ROBERT GRANT & SON, 107 Princes Street, and 
WILLIAMS & NORGATE, 14 Henrietta Street, Covent Garden, London. 
MDCCCCVIII. 
Price Five Shillings. 
