of (SLonnecitcuf 

 PUBLIC DOCUMENT No. 47 



State Geological and Natural 



History Survey 



COMMISSIONERS 



SIMEON EBEN BALDWIN, Governor of Connecticut (Chairman} 

 ARTHUR TWINING HADLEY, President of Yale University 

 WILLIAM ARNOLD SHANKLIN, President of Wesleyan University 

 FLAVEL SWEETEN LUTHER, President of Trinity College (Secretary; 

 CHARLES LEWIS BEACH, President of Connecticut Agricultural College 



SUPERINTENDENT 

 WILLIAM NORTH RICK 



BULLETIN No. 19 



HARTFORD 



Printed for the State Geological and Natural History Survey 



1912 



