CONTENTS. 
PAGE 
Office-Bearers, Session 1905-6, . ... 1 
Some Electrical Measurements on Metals. By Charles E. Fawsitt, 
D.Sc., Pli.D. Communicated by Professor A. Crum Brown. 
Issued separately February 12, 1906, .... 2 
The Tarpan and its Relationship with Wild and Domestic Horses. 
By J. C. Ewart, M.D., F.R.S. (With Three Plates.) Issued 
separately February 12, 1906, ..... 7 
The Horse in Norway. By Francis H. A. Marshall, M.A. 
(Cantab.), D.Sc. (Edin.). (With Two Plates.) Issued 
separately February 12, 1906, . . . . .22 
Notes on the Effect of Electric Oscillations (co-directional and 
transverse) on the Magnetic Properties of Iron. By James 
Russell. Issued separately February 8, 1906, . . .33 
On a Theorem in Hypercomplex Numbers. By J. H. Maclagan- 
Wedderburn, Carnegie Research Fellow. Issued separately 
February 9, 1906, . . . . . .48 
Library Aids to Mathematical Research. By Thomas Muir, 
LL.D. Issued separately February 14, 1906, . . .51 
Bathy draco Scotise, Poisson abyssal nouveau recueilli par l’Expedi- 
tion Antarctique Nationale Ecossaise. Note preliminaire, par 
Louis Dollo, Conservateur au Musee royal d’Histoire naturelle, 
a Bruxelles. Presentee par M. R. H. Traquair, M.D., F.R.S. , 
Y.P.R.S.E. Issued separately March 29, 1906, . . 65 
Some Further Results obtained with the Spectroheliometer. By 
Dr J. Halm. Issued separately March 29, 1906, . . 76 
Preliminary Note regarding an Experimental Investigation into 
the Effects of Varying Diets upon Growth and Nutrition. By 
Chalmers Watson, M.D. ( From the Physiological Laboratory of 
the University of Edinburgh.) Presented by Professor E. A. 
Schafer, F.R.S. Issued separately February 22, 1906, . . 87 
A Contribution to the Study of the Excretion of Allantoin in 
Thymus Feeding. By W. M‘Lachlan, M.D. ( From the 
Research Laboratory of the Royal College of Physicians, Edin- 
burgh.) Communicated by Dr D. Noel Paton. Issued 
separately March 29, 1906, ..... 95 
