*5 



other unseen forces. In short, we must continue our study of all 

 the sources and forces of fertility, to the end that we may know what 

 each contributes to the upbuilding, not necessarily of the soil, but of 

 the crop life above the soil. Thus did Stockbridge teach and 

 practice. 



As Stevenson made practical the discovery of Watts, as Singer 

 improved upon the invention of Howe, so Stockbridge took the 

 teachings of Liebig and Johnson, the tables of Wolf, and the experi- 

 ments of Goessmann, Atwater and Sturtevant, and applied them to 

 practical and useful ends. While the system of plant feeding which 

 he employed, or perhaps I should say the method of application as 

 prescribed in his formulas, did not appeal to the scientific mind in 

 the beginning, it did appeal to the practical farmers, for it met their 

 needs as no other method ever before had done. As good practice 

 and good science must agree in the end, so I believe the scientific 

 world is coming to agree with the practical farmer that the system 

 and the method of application for which Stockbridge stood and la- 

 bored is as truly^scientific as it is thoroughly practical, and to accord 

 him a high place among the workers for the advancement of scien- 

 tific as well as practical husbandry. 



