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Lead arsenate
A model constitution for boys' and girls' clubs, with suggestions for parliamentary procedure
American sumac: a valuable tanning material and dyestuff
Insect pests of tobacco in Southern Rhodesia
Establishing native plant communities
Common winter annual weeds in Alberta
Grain-dust explosions : investigation in the experimental attrition mill at the Pennsylvania State College
The county agent and the farm bureau
Husbandry and rural affairs
The Rothamsted experiments and their practical lessons for farmers; Part I.--Stock. Part II.--Crops