CORRECTION CONCERNING LIFE ZONES OF CANADA. 275 



LITERATURE CITED. 



f 

 American Ornithologists Union 



'10 Check-list of North American Birds. 3d Ed. 

 Fleming, J. H. 



'01 A List of the Birds of the Districts of Parry Sound and Muskoka, Ontario. 



Auk, 18: 33. 

 Klugh, A. B. 



'06 The Flora of a Sandy Marsh. Out. Nat. Sc. Bull., 2: 33. 



'09 The Spring Migration on the Bruce Peninsula. Ottawa Nat., 24: 89. 



'09 Prairie Warbler in Ontario. Ont. Nat. Sc. Bull., 5: 25. 



'10 The Present Status of the Prairie Warbler in Canada. Ont. Nat. Sc. Bull., 



6: 34. 



'12 The Plant Formations of the Bruce Peninsula. Ont. Nat. Sc. Bull., 7: 12. 

 Merriam, C. H. 



'94 Laws of Temperature Control of the Geographic Distribution of Terrestrial 



Animals and Plants. Nat. Geo. Mag., 6: 229. 

 '98 Life Zones and Crop Zones of the United States. U. S. Div. Bio. Survey 



Bull. 10. 

 Saunders, W. E. 



'06 Birds New to Ontario. Ottawa Nat., 19: 206. 

 Seton, E. T. 



'09 Life Histories of Northern Animals. 

 Wright, A. H. 



'20 The Vertebrates of the Otter Lake District, Dorset, Ontario. Can. Field- 

 Nat.. 34: 141. 



