174 



THE ROYAL SOCIETY OF CANADA 



> 



X 



o 



O 



O 



H 



< 



H 



Q 



U 

 S 

 H 



H 



2:; 



o 



H 

 < 



U 



o 

 2; 



O 

 b] 



CO 



en 



■* CO CO 25, ^ 



2|Sool<»2i2«'loo^i;: 





a 





C 3 



TfH 



-* 



CO 



Œ 



CO 



-* 



'i^ 



'-i1'-i_jI^O|(N'-H|i-hO|'-Hj_iC^ 



T-H'r-l"li-Hi-l|i-lr-llr-4»-*'rH«|,-( 





t4 



o 



c 



T3 

 C 



3 



o|S 





• 



'-' ^ f^ 



- — - C — ' 



i-H I CO I© I CO 



a 



c 



< 

 o 





S .22 





3 03 <N 



cr c/2 C5 





lO 



a 



us 



o 



05 



c 

 (1> 





a 

 2 J^ 



