Smith, Harris Pearson,  1891- <br/><br/>
Farm machinery and equipment / 
Harris Pearson Smith 
 - 4th ed. 
 - New York :  McGraw-Hill book company, inc.,  1955 
 - ix, 514 p. :  ill. ;  24 cm. 
<br/><br/> CONTENTS<br/><br/>Farm machinery and its relation to agriculture<br/>Materials of construction<br/>Mechanics<br/>Transmission of power and component parts of machines<br/>Lubricants and lubrication<br/>Hydraulic power lifts and rubber tires<br/>Selection of farm machinery<br/>Tillage history and requirements<br/>Primary tillage equipment<br/>Secondary tillage equipment<br/>Planting equipment<br/>Weed-control equipment<br/>Spraying and dusting equipment<br/>e.tc<br/> 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural machinery.
<br/><br/><label>Dewey Class. No.: </label>631.3  / SMI