PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF EDINBURGH. 
SESSION 1906-7. 
No. V.] VOL. XXVII. [Pp. 369-432. 
CONTENTS. 
PAGE 
XXXVI. Preliminary Note on the action of Sodium Ethylate on 
Trichloromethyl-Sulphonic Chloride. By Professor A. 
Crum Brown and Thomas F. Cowie, B.Sc., . . 369 
{Issued separately November 8, 1907.) 
XXXVII. Note on Quaternion Integral Theorems. By Heinrich 
Hermann, D.Sc. (Tubingen). ( Communicated by 
Professor C. G. Knott), . . . . .371 
( Issued separately November 8, 1907.) 
Meetings of the Society — Session 1906-1907, . . . .373 
Donations to the Library of the Society from 1905 to 1907, . . 386 
List of Periodicals and Annual Publications added to the Library 
by Purchase, . . . . . . .414 
Abstract of Accounts for Session 1906-1907, . .418 
Index, ......... 429 
EDINBURGH : 
Published by ROBERT GRANT & SON, 107 Princes Street, and 
WILLIAMS & NORGATE, 14 Henrietta Street, Coyent Garden, London. 
MDCCCCYII. 
Price Three Shillings. 
