SERIES BY LH- BAILEY UNIVERSITY of CALIFORNIA LES LIBRARY IRural Science Series EDITED BY L. H. BAILEY FARM BOYS AND GIRLS 2&ural Science Series THE SOIL. THE SPRAYING OF PLANTS. MILK AND ITS PRODUCTS. THE FERTILITY OF THE LAND. THE PRINCIPLES OF FRUIT-GROWING. BUSH-FRUITS. FERTILIZERS. THE PRINCIPLES OF AGRICULTURE. 15th Ed. IRRIGATION AND DRAINAGE. THE FARMSTEAD. RURAL WEALTH AND WELFARE. THE PRINCIPLES OF VEGETABLE-GARDENING. FARM POULTRY. THE FEEDING OF ANIMALS. THE FARMER'S BUSINESS HANDBOOK. THE DISEASES OF ANIMALS. THE HORSE. How TO CHOOSE A FARM. FORAGE CROPS. BACTERIA IN RELATION TO COUNTRY LIFE. THE NURSERY-BOOK. PLANT-BREEDING. 4th Ed. THE FORCING-BOOK. THE PRUNING-BOOK. FRUIT-GROWING IN ARID REGIONS. RURAL HYGIENE. DRY-FARMING. LAW FOR THE AMERICAN FARMER. FARM BOYS AND GIRLS. THE TRAINING AND BREAKING OF HORSES. Others in preparation. PLATE I. FARM BOYS AND GIRLS BY WILLIAM A. McKEEVER PKOFESSOR OF PHILOSOPHY KANSAS STATE AGRICULTURAL COLLEGE Nefo If orfc THE MACMILLAN COMPANY 1913 All rights reserved COPYKIGHT, 1912, BY THE MACMILLAN COMPANY. Set up and clectrotyped. Published February, 1912. Reprinted August, 1913 ; January, 1913. Nortooob J. 8. Cashing Co. Berwick