112 



NEW YORK STATE MUSEUM 



It is assumed that the student before taking up geology has 

 had a good general training in physics and chemistry, without 

 which no proper understanding of the subject can be had. An 

 elementary knowledge of zoology and botany is also indispen- 

 sable. 



Frederick J. H. Merrill 

 Albany, N. T. 



January 1, 1898 



