CONTRIBUTORS 



A. G. McClLL, B.Sc, (Ohio State), Ph.D. (Johns Hopkina) : Soil Management, 

 Manures, and Fertilizers. 

 In charge of soil investigators, Maryland Experiment Station, College Park, Md. 



R. G. Weggans, B.Sc. (Missouri), Ph.D. (Cornell): Corn, Wheat, Oats, Barley, 

 Rye, and Rotations. 

 Assistant Professor of Farm Crops, College of Agriculture, Cornell, Ithaca, N. Y. 



F. W. Oldenbxjrgh, B.Sc. (Wisconsin) : Hay, Legumes, Forage, and Soiling Crops. 

 Extension Agronomist, Maryland State College of Agriculture, College Park, Md. 



J, R. Fain, B.W. (Tennessee) : The Culture of Cotton. 



Professor of Agronomy, University of Georgia, Athens, Ga. 



W. W. Garner, A.B. (South Carolina) , Ph.D. (Johns Hopkins) : Culture of Tobacco. 

 Tobacco Expert, Washington, D. C. 



A. G. Smith, Jr., B.S. ( ) : Culture of the Sweet Potato. 



Instructor in Horticulture, Polytechnic Institute, Virginia. 



C. W. Ward, B.Sc. (Ohio) : Fertilizers for the White Potato. 



Extension Specialist in Horticulture, Michigan Agricultural College, East Lans- 

 ing, Mich. 



William C. Sanctuary, B.Sc. (Massachusetts Agriculture) : Poultry. 



Head of the Department of Poultry Husbandry, New York State School of 

 Agriculture, ^Morrisville, N". Y. 



John McNtjtt, B.Sc. (Ohio) : Dairy Cattle. 



Professor Animal Husbandry, Massachusetts Agricultural College, Amherst, 

 Mass. 



M. W. Harper, B.Sc. (Ohio), M.S. (Illinois) : Horse. 



Professor of Animal Husbandry, Cornell, Ithaca, N". Y. 



James R. Dice, B.Sc. (Michigan Agricultural), M.A. (Missouri) : Hogs. 



Professor of Dairy Husbandry, New York State School of Agriculture, Morris- 

 ville, N. Y. 



R. W. Duck, B.Sc, (Missouri), M.S. (Syracuse) : Sheep. 

 Professor of Animal Husbandry, Syracuse University. 



H. F. Baldwin, B.Sc. (Minnesota) : Milk Production. 

 Dairy Expert, Washington, D. C. 



