LIPPINCOTT'S COLLEGE TEXTS AGRICULTURE EDITED BY KARY C. DAVIS, PH.D. KNAPP SCHOOL OF COUNTRY LIFE, GEORGE PEABODY COLLEGE FOR TEACHERS; AUTHOR OF PRODUCTIVE FARMING, HORTICULTURE, ETC. AGRICULTURAL ECONOMICS BY JAMES E. BOYLE, PH.D. EXTENSION PROFESSOR OF RURAL ECONOMY, COLLEGE OF Edited by K. C. DAVIS, Ph.D., Knapp School of Country Life, Nashville, Tenn. PRODUCTIVE SWINE HUSBANDRY BY GEORGE E. DAY, B.S.A. 1915 PRODUCTIVE POULTRY HUSBANDRY 1919 BY HARRY R. LEWIS, B.S. PRODUCTIVE HORSE HUSBANDRY 1920 BY CARL W. GAY, D.V.M., B.S.A. PRODUCTIVE ORCHARDING 1917 BY FRED C. SEARS, M.S. PRODUCTIVE VEGETABLE GROWING 1918 BY JOHN W. LLOYD, M.S.A. PRODUCTIVE SMALL FRUIT CULTURE 1920 BY FRED C. SEARS, M.S. BY WILBERT W. WEIR, M.S. LIPPINCOTT'S COLLEGE TEXTS SOIL PHYSICS AND MANAGEMENT 1919 BY KARY C. DAVIS HORTICULTURE FOR HIGH SCHOOLS 1919 BY KARY C. DAVIS PRODUCTIVE SOILS Abridged Edition 1920 BY WILBERT W. WEIR, M.S. LABORATORY MANUALS AND NOTEBOOKS SOILS, BY J. F. EASTMAN and K. C. DAVIS 1915 POULTRY, By H. R. |