THE 



JULY, 1904. 



VOL. XVIII. No. 4 



OTTAWA 

 NATURALIST. 



Published by the Ottawa Field-Naturalists' Club. 



CONTENTS. 



1. On the Squamoso Parietal Crest of Two Species of Horned 



Dinosaurs from the Cretaceous of Alberta, by Lawrence 



2. The Mountain Bluebird in Manitoba, by Norman Griddle 



3. Note on the Food Value of Certain Mushrooms, by Frank 



X • 1^ HULL •■•• •••• •••• ••>.• •••• ••«• 



4. General Excursions . . .... .... 



5. Conchological Notes .... .... ... 



6. Nature Study — No. 15 .... .... .... 



Page 



81 



85 



87 

 89 

 91 

 93 



(ISSUED JULY 7, 1904.) 



(^ 

 OTTAWA, CANADA. Sjj 



Ottawa Printing Company (Limited). "22. 

 3 & 5 MosGROVE St. '"^ 



Entered at the Ottawa Pat Office as second class matter. 



