XVI 



BULLETIN OP THE GEOLOGICAL SOCIETY OP AMERICA 



Reprints. Pagks. Plates. Figures. 



Methods of correlation by fossil verte- 

 brates. W. D. Matthew f. . , 515-524 



Principles governing the use of fossil 

 plants in geologic correlation. F. 

 H Knowlton t 525-530 



Silurian formations of southeastern 

 New York, New Jersey, and Penn- 

 sylvania. C. Schuciiert'I" 531-554 .... 1 



Comparison of American and Euro- 

 pean Lower Ordovicic formations. 

 A. W. Grabau t 555-622 



Triassic igneous rocks in the vicinity 

 of Gettysburg, Pennsylvania. G. 

 W. Stose and J. V. Lewis 623-644 .... 



Glacial lakes and other glacial fea- 

 tures of the central Adirondacks. 

 H. L. Alling 645-672 22-24 



Cretaceous of Alherta, Canada. J. PL 

 Sinclair 673-684 .... 



Triassic rocks of Alaska. G. C. 

 Martin 685-718 25-30 



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f Under the brochure heading is printed Proceedings of the Paleontological Society. 



