Xir. FOSSILS FROM THE GLACIAL DRIFT AND FROM 



THE DEVONIAN AND MISSISSIPPIAN NEAR MEAD- 



VILLE, PENNSYLVANIA. 1 



By William Millward. 



This paper falls naturally into two parts, namely, the fossils of the 

 glacial drift, and the fossils found in the bedrock. In dealing with 

 the former phase of the subject the writer has felt free to cover a con- 

 siderable extent of territory, because of the wide extent of the glacial 

 deposits. Specimens have been collected at Conneaut Lake, Har- 

 monsburg, Meadville, Kerrtown, Saegertown, South Oil City, Reno, 

 Utica, Sugar Creek, Carlton, and from the river gravels at Cheswick. 

 Nearly all of the glacial drift of this section of northwestern Pennsyl- 

 vania is late Wisconsin. There is, however, on the hills on the east 

 bank of French Creek between Utica and Sugar Creek, an extensive 

 deposit of earlier drift, presumably Kansan or Pre-Kansan. In dealing 

 with the fossils of the bedrock only the immediate region of Meadville 

 has received attention. 



The writer takes this occasion to acknowledge his indebtedness to 

 Dr. Percy E. Raymond of the Carnegie Museum, Pittsburgh, for his 

 kindness in checking and correcting the identification of the corals 

 and other fossils from the glacial drift, and of most of the fossils from 

 the bedrock; and for his aid and direction in the preparation of this 

 paper. He is also indebted to Prof. Robert S. Breed, Allegheny Col- 

 lege, Meadville, for his direction and oversight in the preparation of 

 the original paper of which this is a revision. Thanks are also due 

 Messrs. W. L. Mould, W. R. Main, Abram Wilkinson, L. W. Sher- 

 win, McNair, Taylor, and First, for specimens contributed or loaned. 



The Fossils of the Glacial Drift. 

 The drift is made up of subangular stones mingled with gravel, clay, 

 and sand. In some places the materials of the drift have been water- 

 worked and are stratified, while in other deposits no stratification 



'This paper is a revised abstract of a thesis which won the second Ileckel prize 

 at Allegheny College, June, 1908. A suite of the fossils on which the paper is based 

 has been deposited in the Carnegie Museum. 



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