Published monthly by the 



University of the State of New York 



BULLETIN 259 



JULY 1902 



New York State Museum 



Frederick J. H. Merrill Director 

 John M. Clarke State paleontologist 



Bulletin 52 



PALEONTOLOGY 6 



REPORT OF THE STATE PALEONTOLOGIST 



1 90 1 



PAGE 



Operations in the field 1900-1 419 



Field staff 442 



Office work 442 



Memorial tablet for the Emmons house 452 



Office staff 456 



Locality record of specimens 456 



George Bancroft Simpson 45 7 



Appendix 1 : Accessions 



Donations 461 



Purchases . » 463 



Exchanges 465 



Collections - 467 



Appendix 2 : New entries of localities 



Alphabetic list of localities 468 



New York localities by counties 476 



Index to formations 480 



Record of localities 482 



Record of foreign localities 516 ■ 



Appendix 3 



Contact lines of upper Siluric forma- 

 tions on the Brockport and Me- 

 dina quadrangles. J. M. Clarke, 



R. RUEDEMANN & D. D. LUTHER. 517 



Paleontologic results of the areal sur- 

 vey of the Olean quadrangle. 

 John M. Clarke 524 



Potsdam sandstone of the Lake Cham- 

 plain basin. Gilbert van Ingen. 529 



Graptolite facies of the Beekmantown 

 formation in Rensselaer county, 

 N. Y. Rudolf Ruedemann 546 



PAGE 



Appendix 3 {continued) 



Growth and development of Gonio- 



graptus thureaui McCoy. Rudolf 



Ruedemann 576 



Fossil alga from the Chemung of New 



York. David White 593 



A new genus of paleozoic brachiopods, 



Eunoa. John M. Clarke.. 606 



Stratigraphic value of the Portage 



sandstones. D. D. Luther 616 



Paleozoic seas arid barriers in eastern 



North America. E. O. Ulrich & 



Charles Schuchert 633 



Indigene and alien faunas of the New 



York Devonic. John M. Clarke. 664 



Index 685 



Plates face 



1 Memorial tablet on the Emmons 



house, Albany N. Y 456 



Map of portions of s. e. Clinton and 



n. e. Essex counties 539 



2 Section along Deep Kill, Rensselaer 



co--.-, - -. 546 



Orbiculoidea magnifica 614 



3, 4 Thamnocladus clarkei White 



674, 676 



5 , 6 Eunoa accola Clarke 678, 680 



7, 8 Orbiculoidea ? magnifica Clarke 



682, 684 

 9 Map showing Paleozoic barriers in 



eastern North America 633 



