1896.] Geology and Paleontology. 2YI 



stage, that is, the second glacial epoch, after which the cold stage 

 diminished continuously in importance. In like manner, the earliest 

 interglacial epoch seems to have been the most genial, each successive 

 epoch approximating more and more closely to existing conditions. 



The American glacial deposits have been classified by Mr. Chamber- 

 lin, and an attempt made to correlate them with those of Europe. The 

 following table shows the tenti 



European. American. 



XL Upper Tubarian=Sixth Glacial Period. 

 X. Upper Forestian=Fifth Interglacial Period. 



IX. Lower Turbarian = Fifth Glacial Epoch. 

 VIII. Lower Forestian=Fourth Interglacial Epoch. * 

 VII. Mecklenburgian=Fourth Glacial Epoch. Wisconsin. 



VI. Neudeckian=Third Interglacial Epoch. Toronto. 



V. Polandian=Third Glacial Epoch. Iowan. 



IV. Helvetian=rSecond Interglacial Epoch Aftonian. 



III. Saxonian=Second Glacial Epoch. Kansas Formation. 



II. Norfolkian=First Interglacial Epoch. 

 I. Scanian=First Glacial Epoch. 



The complex series subsequent to the Wisconsin formation have not 

 been sufficiently investigated to permit even a tentative correlation, 

 or indeed, to even designate the specific formations. This statement is 

 equally applicable to the formations deposited during the advancing 

 stages of the glacial period in America. (Journ. Geol., Vol. Ill, 

 1895.) 



Geologic News. — Paleozoic. — Haworth proposes to divide tne 

 Coal Measures of Kansas into Upper and Lower, the division to be at 

 the top of the Pleasonton shales, which is at the bottom of the Erie lime- 

 stone. The division is based principally on paleontological evid< snoe. 

 In the author's study of tin- Kansas Coal Measures he finds that the 

 shales are of submarine origin, while the entire formation appears to 

 have been laid down during a period of gentle oscillations, with the 

 greatest movement to the west, and the least to the east. (Kan. Univ. 

 Quar., Vol. Ill, 1895.) 



An Orthoceras shell of gigantic proportions has been found in the 

 Lower Coal Measures of Iowa, about forty miles from Des Moines. 

 This specimen is three inches in diameter and as it is of the same very 

 slender as the associated forms, it could not have been less than six feet 

 in length, and probably was even longer. The species is O.fauslerensis. 

 (Science, Jan., 1896.) 



