PROCEEDINGS 
OF THE 
lns tifu f/ 
APR 18 1914 
JV at: 
ROYAL SOCIETY OF EDINBURGH. 
SESSION 1913-14. 
Part I.] VOL. XXXIV. [Pp. 1-112. 
CONTENTS. 
NO. PAGE 
Presentation of Bust of Lord Kelvin. (With Frontispiece), . 1 
I. Opening Address by the President, Professor James Geikie, 
LL.D., D C.L., F.R.S., F.G.S., delivered at the First Ordinary 
Meeting for the Session, held on November 3, 1913, . 4 
II. Observations on the Auditory Organ in the Cetacea. By 
Principal Sir Wm. Turner, K.C.B., D.C.L., F.R.S., . . 10 
{Issued separately December 31, 1913.) 
III. Note on a Siliceous Sponge of the Order Hexactinellida from 
South Shetland. By Principal Sir William Turner, K.C.B., 
D.C.L., F.R.S., . . ... . .23 
{Issued separately December 31, 1913.) 
IY. Some Factorable Minors of a Compound Determinant. By 
Professor W. H. Metzler, . . ; . .27 
{Issued separately December 31, 1913.) 
Y. The Theory of Bigradients from 1859 to 1880. By Thomas 
Muir, LL.D., 32 
{Issued separately February 19 1914.) 
YI. The Kinetic Energy of Yiscous Flow through a Circular Tube. 
By Professor A. H. Gibson, D.Sc., University College, Dundee, 60 
{Issued separately February 19, 1914.) 
EDINBURGH : 
Published by ROBERT GRANT & SON, 107 Princes Street, and 
WILLIAMS & NORGATE, 14 Henrietta Street, Covent Garden, London. 
MDCCCCXIY. 
Price Six Shillings and Sixpence. 
