FARM IIPLEIENTS Al lACHINERY, 



AND THE 



Principles of their Construction and Use : 



■WITH 



SIMPLE AND PEAOTIOAL EXPLANATIONS 



OF THE 



LAWS OF MOTION AND FORCE, 



AS APPLIED ON THE FARM. 



With 287 Illustrations, 



By JOHN* J*. THOMAS. 



CONTENTS. 



PART I.— MECHANICS. 



Chapter I.^Introductiok. — Value of Farm Machinery— Importance of a 

 Knowledge of Mechanical Principles. 



Chapter II. — General Principles of Mechanics, 



Chapter ITt. — Attraction. 



Chapter IV. — Simple Machines, or Mechanical Powers. 



Chapter V. — Application of Mechanical Principles in the Stmcture of Im- 

 plements and Machines, 



Chapter VI. —Friction. 



Chapter VII.— Principles of Draught. 



Chapter VIII.— Application of Labor. 



Chapter IS.— Models of Machines. 



Chapter X. — Constrnction and Use of Farm Implements and Machines — 

 Implements of Tillage, Pulverizers. 



Chapter SI.— Sowin^; Machines. 



Chapter XII. — ^Machines for Haying and Harvesting. 



Chapter XIII.— Thrashing, Grinding, and Preparing Products. 



PART n.— MACHINERY IN CONNECTION WITH WATER. 

 Chapter T. — ^Hydrostatics. 

 Chapter II.— Hydraulics. 



PART in.— MACHINERY IN CONNECTION WITH AIR. 

 Chapter I.— Pressure of Air. 

 Chapter n. — Motion of Air. 



PART IV.— HEAT. 

 Chapter L— Conducting Power— Expansion, Great Force of— Experiments 

 with— Steam Engine — do. for Farms— Steam Plows— Latent Heat- 

 Green and Dry Wood. 

 Chapter II.— Radiation. 



APPENDIX. 

 Apparatus for Experiments. 

 Discharge of Water through Pipes. 

 Velocity of Water in Pipes. 

 Rule for Discharge of water. 

 Velocity of Water in Tile Drains. 

 Glossary. 



JPricei Fost-paidf $1.50. 



ORANGE JUDD & CO., 



245 Broadway, STew-York. 



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