308 Scientific Intelligence. 
frozen. 4th. The crevices in the glacier formed by the fracture of 
the ice. This breaking up of the ice will enable large masses of 
turbance were distinctly registered in that way by the tide-gauges 
on the Pacific coast, and they have been made use of to estimate 
the average depth along the lines of transmission. See Coast Sur- 
vey Reports for 1855, ’62 and 69. 
No corresponding earthquake phenomena have come to the 
knowledge of the Coast Survey office, and it is probable that if 
such was the case, the shock occurred somewhere under the Atlan- 
¢ ocean. 
5. On the age of certain beds of Wyoming referred to the Ter- 
tiary by Prof. Hayden and to the Cretaceous by others ; by Prof. 
LesquerEvx.—In a paper published as rectification by Prof. E. D. 
Cope, (Feb. 7, 1873,) and distributed as a circular, I read the follow- 
ing remark; “ Prof, Lesquereux (Hayden’s Survey of Territories, 
ing rer 
_ 1870, p. 806) had considered the fossil flora of Point of Rocks, 
