CONTENTS. 

PART I. (1872-73.) 
1.—On the Philological Genius and Character of the Neo-Hellenic 
Dialect of the Greek Language. By Professor BLACKIE, 
Il.—On the supposed Upheaval of Scotland in its Central Parts since 
the tume of the Roman Occupation. By Davin Mitne Home, 
Esq. (Plate I), 
III.—On the Electrical Conductivity of Certain Saline Solutions, with a 
Note on the Density. By J. A. Ew1ne and J. G. MacGrecor, 
B.A. Communicated by Professor Tarr. (Plate IT), 
IV.—On the Placentation of the Sloths. By Professor TURNER. 
(Plates IIJ—VI.), : : 
V.—On Orthogonal Isothermal Surfaces. Part I. By Professor 
TAIT, ; ; } ; ; : : 
VI—First Approximation to a Thermo-Electric Diagram. By Prof. 
Tair. (Plates VIT-IX.), . : 
VII.—On the Physiological Action of Light. By James DEewar and 
Joun Gray M‘Kenpricx, M.D. PartI. (Plates X., XI), 
VIII.— On the Physical Constants af Hydrogenium. By James DEwak. 
(Plate XIT.), ; 
PAGH 
39 
71 
141 
167 
