IV 
DEDICATION. 
the world, and the illustrations will compare favorably with any similar work 
elsewhere published. 
Hoping that this volume may commend itself to your Excellency and prove 
acceptable to the students of science, and not unworthy of a place in the series 
of works comprising the Natural History of the State of New York, 
I have the honor to be, 
With great respect, 
Your obedient servant, 
JAMES HALL, 
State Geologist. 
Albany, November , 1885. 
