Elementary Lessons in the Science of Agricultural Practice

A. W. VERRALL acre Agricultural Science ammonia animal arising Assistant Master atmosphere barley become BEGINNERS bushels Cambridge carbonic acid CHAPTER character chemical CHEMISTRY clay climate clover composition contain corn cultivation desirable double silicates Edited English fact farm farm-yard manure farmer FASNACHT favourable Fcap fermentation fertilising matter fertility G. E. FASNACHT GREEK green manures growing crop grown growth Hence HISTORY Illustrated influence Introduction and Notes irrigation ISAAC TODHUNTER J. P. MAHAFFY land LATIN Lecturer LESSONS lime LL.D M.A. BOOK M.A. Cr MACMILLAN'S Maps materials Mathematics mechanical condition mineral matter moisture necessary oats organic matter Owens College phosphate plant plant-food ploughed portion potash practice preparation PRIMER produced Prof Professor quantity rendered revised rocks roots sand School secure seed silicates soil soluble straw substances success superphosphate supply surface T. H. HUXLEY tillage tion Translated Trinity College University valuable vegetable wheat whilst wurzel