DRACTICAL FARM CHEMISTRY. A Practical Handbook of Profitable 



Crop-Feeding, written for Practical Men. By T. GREINKR. 



Part I. The Raw Materials of Plant-Food. 



Part II. The Available Sources of Supply. 



Part III. Principles of Economic Application, or Manuring for Money. 



This work, written in plainest language, is intended to assist the farmer 

 in the selection, purchase and application of plant-foods. If you wish to 

 learn ways how to save money in procuring manurial substances, and how 

 to make money by their proper use, read this book. If you want your 

 boy to learn the principle of crop-feeding, and become a successful farmer, 

 give him a copy of this book. The cost of the book will be returned a hun- 

 dred-fold to every reader who peruses its pages with care and applies its 

 teachings to practice. 



Price, cloth, $i. 



C PRAYING CROPS.-Why,When and How to Do It. By PROF. CLAR- 

 ENCE M. WEED. A handy volume of about 100 pages; illustrated. 

 Covers the whole field of the insect and fungous enemies of crops for which 

 the spray is used. The following topics are discussed in a concise, practi- 

 cal manner : 



Spraying Against Insects. Feeding Habits of Insects. Spraying Against 

 Fungous Diseases. The Philosophy of Spraying. Spraying Apparatus. 

 Spraying Trees in Blossom. Precautions in Spraying. Insecticides used 

 in Spraying. Fungicides used in Spraying. Combining Insecticides 

 and Fungicides. Cost of Spraying Materials. Prejudice Against Spray- 

 ing. Spraying the Larger Fruits. Spraying Small Fruits and Nursery 

 Stock. Spraying Shade Trees, Ornamental Plants and Flowers. Spray- 

 ing Vegetables, Field Crops and Domestic Animals. 



Price in stiff paper cover, 50 cents ; flexible cloth, 75 cents. 



