/ 



? 



Published monthly by the 



New York State Education Department 



BULLETIN 409 AUGUST 1907 



New York State Museum 



John M. Clarke, Director 



Bulletin 114 

 PALEONTOLOGY 1 7 



GEOLOGIC MAP tf 



* OF THE 



ROCHESTER AND ONTARIO BEACH 

 QUADRANGLES 



C. A. HARTNAGEL 



PAGE 



Introduction '5 



Sequence of events preceding 

 the deposition of the rocks of 

 the Rochester area 8 



Formations 10 



• PAGE 



Medina formation 10 



Clinton formation 12 



Niagara formation 17 



Salina formation 27 



Index 33 



*o4-qqq 



ALBANY 



NEW YORK STATE EDUCATION DEPARTMENT 

 1907 



Mpi25m-Je6-i500 



Price 20 cents 



