[MACKAY] BIBLIOGRAPHY OF CANADIAN BOTANY 151 
SARGENT, C. S. 
“The genius Crataegus in North America.” Jour. Bot. xlv, 289-292; 
1 August, 1907. 
SARGENT, C. S. 
“ Crataegi of Ontario.” Ont. Nat. Sci. Bull., iii, 6-10; Guelph, 1907. 
SARGENT, C. S. 
“Crategus in Ontario.” Ont. Nat. Sci. Bull., iii, 11-98; Guelph, 1908. 
SARGENT, C. S. 
“Crataegus in Southern Ontario.” (Ten groups containing ninety-five 
species are systematically described.) Ont. Nat. Sci. Bull., No. 4; Guelph, 
O., May, 1908. 
SAUNDERS, W. E. 
“Cypripedium arietinum on the shores of Lake Erie.”” Ott. Nat. xxii, 163, 
164; 2 November, 1908. 
SAUNDERS, W. 
“Dr. James Fletcher’s work, its influence on Canadian Agriculture.” 
Ottawa Nat., xxii, 192-196; 12 January, 1909. 
SEAVER, F. J. 
“The Hypocreales of North America, I.’ Mycologia i, 41-76. pl. 4, 5; 
April, 1909. 
Seaver, F. J. 
“Notes on North American Hypocreales, I.” (Nectria Peziza). Bull. 
Torrey Club, xxxvi, 201-206, pl. 15; 4 May, 1909. 
SETCHELL, WILLIAM ALBERT | 
Couuins, FRANK SHIPLEY f 
“Some Algae from Hudson Bay.” (Four green, nine brown, and fifteen 
red). Rhodora x, 114, pp. 114-116.; Boston, June, 1908. 
SHAW, Percy J. 
“Spring Nature Study—Trees, Twigs and Buds.” Educational Review, 
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SHAW, Percy J. 
“School Gardens.” Ed. Review, xxii, 282; Saint John, New Brunswick, 
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Saw, Percy J. 
“November Nature Study.” Ed. Rev. xxiii, 129; Saint John, N.B., 
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SHAW, W. F. 
“The Forest Wealth of Ontario.” (A scheme for its perpetuation.) Rod 
and Gun, vii, 8, pp. 856-858; Woodstock, Ont., January, 1906. 
