How crops grow:  a century later/ 
edited by Peter R. Day 
 - Connecticut:  Connecticut Agricultural Experiment Station,  1969 
 - 180 p.;  22 cm. 
<br/><br/> A series of lectures to celebrate the centennial of how crops grow by Samuel W. Johnson - 1868 Delivered September 17. 1968- May 19. 1969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops--Physiology<br/>Field crops--Nutition<br/>Field crops--Seeds
<br/><br/><label>Dewey Class. No.: </label>633.082