Journal and Proceedings 



OF 



ThG Hamilton 



Scientific Association 



For Session of 1906-1907. 



NUMBER XXIII. 



AUTHORS OF PAPERS ARE ALONE RESPONSIBLE FOR STATE- 

 MENTS MADE AND OPINIONS EXPRESSED THEREIN. 



PRINTED FOR THE HAMILTON SCIENTIFIC ASSOCIATION BY 

 HEATH & HIGNEI.I,. 



1907 



