Mineralogy and Geology. 275 
11. On the Geology of the New Haven Region, with special 
reference to the orign of its Topographical features ; by James D. 
ANA. 70 pp. 8vo, with a map. From vol, IJ, of the Transactions 
facts brought out in this paper, “ that, by special facts, and by the 
course of events, this region in the Glacial era, like that of New 
England to the was moulded at surface largely by the 
with stratified and unstratified drift-formations simultaneously ; 
that icebergs had no part in the matter, and the supposed iceberg 
> 
12. On the Mixture of Cretaceous and Eocene Fossils; by T. A. 
RAD, (communicated for this Journal).—We frequently hear of 
vidence i 
ON 
passage beds between the Chalk and Eocene, but the evidence is 
sils which are easily traced to disturbances in the bed of the ocean. 
Lamon 
franc € region especially abundant in diamonds is the frontier 
of the Orange River country, at Sikatlory— Les Mondes, Jan. 13. 
it pyornis of Madagasear.—MM. » Mitne-Ep- 
WaRbs and Atr, Granpiprer describe in Comptes Rendus, 11th 
Oct. 1 rtain curious anatomical peculiarities of the bones of 
“pyorni he 
shortwinged birds, but constitutes amongst them a type ¢ 
its massive forms, and by f 
Searcely exceeded two metres, which is the height of a 
trich, while the Dinorags giganteus varied from two and a half e 
“ree metres. But if the Aipyornis is not, as was supposed, the 
