AUGUST, 1907 



VOL. .XXIII, No. 6 



THE ,.r 



OTTAWA 

 NATURALIST 



Published by The Ottawa Field-Naturalists' Club. 



CONTENTS. 



PAGE 



Notes on the Geology and Mineral Resources of Trinidad and 



Barbados, B. W. Islands, by R. W. Ells, LL.D., etc. - 73 



Description of a Canadian Species of Peltoceras, by J. F.Whiteaves 80 

 The Second Chapter in the Story of the Migration of Birds of the 



Past Spring, by G. Eifrig 83 







ISSUED SEPTEMBER 20, 1907. 





->^^ OTTAWA, CANADA; 



'"^'i5^ Thb Rolla L. Grain Co. Limited 

 Wellington St. 

 Enttred at tht Ottawa Post, Office as second class matter. 



