

PROCEEDINGS 



ROYAL PHYSICAL SOCIETY 



or 



EDINBURGH. 



FOR THE PROMOTION OF ZOOLOGY AND OTHER BRANCHES 

 OF NATURAL HISTORY 



VOL. XVIII. 

 1909-1912. 



^VfHSO/y^ 



350560 



EDIN BURGH: 

 PRINTED FOR THE SOCIETY, AND PUBLISHED AT THEIR ROOMS, 



SYNOD HALL. 



MCMXII. 



