PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF EDINBURGH. 
SESSION 1914-15. 
Part III.] VOL. XXXV. [Pp. 225-402, 
CONTENTS. 
NO. PAGE 
XXII. The Interaction of Methylene Iodide and Silver Nitrate. 
By Professor C. R. Marshall and Elizabeth Gilchrist, 
M.A., B.Sc.,. ...... 227 
{Issued separately December 3, 1915.) 
XXIII. A Comparative Study of the Reflexes of Autotomy in 
Decapod Crustacea. By J. Herbert Paul, M.A., B.Sc. 
(From the Physiological Department of the University 
of Glasgow, and the Marine Laboratories at Millport 
and Cullercoats.) Communicated by Professor Noel 
Paton, ....... 232 
(Issued separately December 4, 1915.) 
XXIV. Chalk Boulders from Aberdeen and Fragments of Chalk 
from the Sea Floor off the Scottish Coast. By the late 
William Hill, of Hitchin, F.G.S. Communicated by 
Professor D’Arcy W. Thompson, . . . 263 
(Issued separately December 14, 1915.) 
XXV. Notes on the Structure of the Chalk occurring in the 
West of Scotland. By the late William Hill, of 
Hitchin, F.G.S. Communicated by Professor D’Arcy 
W. Thompson, ...... 297 
(Issued separately December 14, 1915.) 
Obituary Notice — 
Sir John Murray, K.C.B., LL.D., Ph.D., D.Sc., F.R.S., etc., . 305 
[^Continued on page iv of Cover. 
EDINBURGH : 
Published by ROBERT GRANT & SON, 107 Princes Street, and 
WILLIAMS & NORGATE, 14 Henrietta Street, Covent Garden, London. 
MDCCCCXV. 
Price Seven Shillings, 
