6 XEW YORK STATE MUSEUM 



vised, the iron mines carefully restudied and the area of the Port 

 Henr\' quadrangle has been added, the junior author taking charge 

 of the Paleozoic areas. 



The results are herewith submitted, with the maps on the full 

 topographic scale of one mile to one inch. Acknowledgments are 

 cordially made to the Director of the United States Geological 

 Survey and to the younger men who in past years have efficiently 

 assisted in the field work. 



Respectfully 



James F. Kemp 

 Rudolf Ruedemaxx 



