^^€t^Q of (StoTTtieciicui 



PUBLIC DOCUMENT No. 47 



State Geological and Natural 

 History Survey 



COMMISSIONERS 



Marcus Hensey Holcomb, Governor of Connecticut (Chairman) 

 Arthur Twining Hadley, President of Yale University 

 William Arnold Shanklin, President of Wesleyan Universitr 

 Flavel Sweeten Luther, President of Trinity College (Secretary) 

 Charles Lewis Beach. President of Connecticut Agricultural College 

 Frederick Henry Sykes. President of Connecticut College far Women 



SUPERINTENDENT ' 



William North Rick 



Bulletin No. 22 



HARTFORD 

 Printed for the State Geological and Natural History Survey 



1916 



