76 TRANSACTIONS OF THE [FEB. 4, 
reply Prof. Woodward said it is computed from the meagre data 
to be enough to melt a layer of ice 5 to 7 mm. thick over the 
earth’s surface. The chairman, Prof. R. P. Whitfield, in closing 
the discussion called attention to the fact that the submarine 
crumpling and upheaval were not well known nor often taken 
into account, and wet they probably far exceed all that we see 
‘on the continents. 
The Academy then adjourned. 
J. F. Kemp, 
Recording Secretary. 
Sratep MEETING. 
January 28th, 1895. 
The Academy met and listened to the third public lecture of 
the course for 1894-95 by Prof. E. B. Wilson, entitled “The 
Newer Problems of Embryology.” Sixty persons present. 
J. F. Kemp, 
Recording Secretary. 
REGULAR BusINEss MEETING. 
February 4th, 1895. 
The meeting was called to order by President Ress, with 
twenty members and guests present. In the absence of the 
Secretary, Prof. William Hallock was made Secretary pro. tem. 
of the Academy. The minutes of the last meeting were read 
and approved. There being no general business the Section of 
Astronomy and Physics organized, with President Rees con- 
tinuing in the chair. 
The first paper was upon “A new photographic method of 
comparing the pitch of tuning forks,” illustrated by experiment 
and lantern slides. The method consists in placing each fork 
