MARCK 1900. 



VOL. XIII, No. 12 



THE 



OTTAWA 

 NATURALIST 



Published by the Ottawa Fleld-Naturailsts' Club. 



CONTENTS. 



Page. 



Notes on Hudson Bay Sponges by Lawrence M. Lambe, F.G.S. 277 

 Appendix to President's Address delivered before the Ottawa 



Field-Naturalists' Club 279 



Index .... .... .... • • • • • • • . • . • • 295 





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Ottawa Printing Company. (Limited) ' = 

 3 & 5 MosGROVE St. 



Entered at the Ottawa Post Office at tecond cltut matt*r. 



