[MACKAY] BIBLIOGRAPHY OF CANADIAN BOTANY 183 
Grorr, H. H. 
“ Hybridizing the Gladiolus—are its Lessons possible of General Applica- 
tion.” (A sketch of the results of twenty years’ work in developing varie- 
ties.) Can. Seed Growers’ Ass’n., 6th Ann. Rep., pp. 52-58; Government 
Print. Bureau, Ottawa, 1910. 
Grou, H. 
“ Bartonia Virginica in Quebec.” Ottawa Nat. xxii: 211; February, 1910. 
Grou, H. 
“Another case of natural grafting.’ (Maple tree, Ottawa, Bank Street, 
west side, between Roseberry and Strathcona Avenues.) Ott. Nat. xxiv: 
64; S June, 1910, Ottawa. 
Grou, HERBERT. 
“Preliminary list of the Crataegi of the Ottawa District.’’ (Nineteen 
species.) Ott. Nat. xxiv: 126-128; 15 October, 1910, Ottawa. 
Gussow, H. T. 
“Report of the Dominion Botanist.”’” (General directions regarding the 
dissemination and control of plant diseases, diseases affecting grain crops, 
potatoes, apples, fruit trees and shrubs, atmospheric and physical diseases, 
Weeds.) Canadian Exper. Farms, Rep. 1910, pp. 251-284; Ottawa. 
Gussow, H. T. 
“Plant physiology Versus psychology.” Ott. Nat. xxiv: 113-116; 15 
October, 1910, Ottawa. 
Hankinson, L. D. 
“Some Results obtained in the work of Corn Improvement and the Demand 
for High Class Seed Corn.” (Guelph, December, 1909.) Can. Seed 
Growers’ Ass’n., 6th Ann. Rep., 92-94; Ottawa, 1910. 
HART, S. 
“Experimental Plots.’ (School garden work.) O. A. C. Review, xxiii: 
108-112; December, 1910, Guelph. 
HAS Ge Ur 
“Observations on weather and plants, 1908-9.’ Bull. Nat. Hist. Soc.: 
New Brunswick vi: 127-131; 1909. 
Hay, G. U. 
“Gleanings from the Canadian Forestry Convention, Fredericton, February 
23, 24, 1910.” Ed. Review xxiii: 249, 250; March 1910, St. John. 
HAY AGIT: 
“ Average Opening of Flowers.” Bull. Nat. Hist. Soc., New Brunswick, 
No. xxvili: 251-253; 1910. 
HEROLD, Orro. 
“Selection of Seed of Field Roots and Vegetable Crops in Canada.” Can. 
Seed Growers’ Ass’n., 6th Ann. Rep., pp. 72-80; Ottawa, 1910. 
