_Influences of Geographic Environment._ =E. C. Semple=, Author of “American History and its Geographic Conditions.” Medium 8vo. 700 pages. 21/- net.
_Outlines of Evolutionary Biology._ =Arthur Dendy, D.Sc., F.R.S.=, Professor of Zoology in the University of London (King’s College); Zoological Secretary of the Linnean Society of London; Honorary Member of the New Zealand Institute; formerly Professor of Biology in the Canterbury College (University of New Zealand), and Professor of Zoology in the South African College, Cape Town. 2nd Edn. Enlarged. 4th Impression, with a Glossary. Fully Illustrated. 15/- net.
_Agriculture and Irrigation._ =Kinsley D. Doyle.= Demy 8vo. 288 pp. 19/- net.
CONTENTS.—The Soil. Fertilizers. Irrigation. Wells and Pumping. Dry Farming and Economics. Pastures, Natural and Artificial. Notes on Forests, Cattle, Pigs and Carobs. Runs and Farms for Sheep and Ostriches. Cereals. Apples. Asparagus. Onion and Potatoes. Citrus Orchards. Grapes, Walnuts and Pistachio Nuts. Some Special Industries. Some Tropical Fruit. Tropical Plantations. Planting and Sowing for Oil. Tropical Agriculture.
_Dairy Laboratory Guide._ =C. W. Melick, B.S.A., M.S.= Crown 8vo. With 52 Illustrations.
_Soils and Manures._ =J. Alan Murray, B.Sc.= Extra Crown 8vo. 8/6 net.
CONTENTS.—Preface. Introductory. The Origin of Soils. Physical Properties of Soils. Chemistry of Soils. Biology of Soils. Fertility. Principles of manuring. Phosphatic Manures. Phospho-Nitrogenous Manures. Nitrogenous Manures. Potash Manures. Compound and Miscellaneous Manures. Potash Manures. Compound and Miscellaneous Manures. General Manures. Farmyard Manure. Valuation of Manures. Composition and Manurial Value of Various Farm Foods. Index.
_The First Book of Farming._ =Charles L. Goodrich.= With 87 Illustrations. Crown 8vo. 7/6 net.
CONTENTS.—General Principles Underlying Plant Culture. Introduction to Plants. Roots. Soils. Relation of Soils to Water. Forms of Soil Water. Loss of Soil Water. Soil Temperature. Plant Food in the Soil. Seeds. Planting. Spading and Ploughing. Harrowing and Rolling. Leaves. Stems. Flowers. Soil Fertility as Affected by Farm Operations and Farm Practices. Fertile Soils. Soil Water. After-Cultivation of Crops. Farm Manures. Commercial Fertilizers. Rotation of Crops. Farm Drainage. Glossary.