LATER YEARS 99 



Congress of Chemists at Chicago on salt, on methods of 

 teaching or demonstrating chemistry, and on the prog- 

 ress of chemistry as applied to agriculture. In 1889 

 Amherst College conferred upon him the degree of 

 Doctor of Laws. 



He was a frequent lecturer before the state boards of 

 agriculture and the various agricultural and horticul- 

 tural societies, and read papers at the meetings of the 

 American Chemical Society and other scientific bodies. 

 For upwards of thirty years he was a constant attend- 

 ant at the gatherings of the Massachusetts State 

 Board of Agriculture and the most constant contribu- 

 tor to its reports. He lectured before the Board 'on 

 salt and its uses in agriculture'; 'on nitrogen plant- 

 food'; 'on the subduing and utilizing of salt-marshes 

 for tillage'; 'on plant and animal nutrition'; 'on the 

 chemistry of fruit culture'; 'on the cultivation of the 

 sugar-beet'; 'on the effect of chemical salts on the 

 carbohydrate content of plants'; 'on the system of 

 preserving green food in silos'; 'on mineral constitu- 

 ents in plant-growth'; 'on the influence of chemistry 

 in the development of a rational system of stock- 

 feeding'; 'on the rotation of crops'; 'on rational fer- 

 tilization of garden crops and fruits'; 'on the hay-field 

 and English hay'; 'on the breeding and feeding of 

 swine'; and 'on the grass crop.' 



On November 12, 1898, a notable dinner was given 

 at the Metropolitan Club in New York, for Gottingen 

 students of 1855-56, with some of earlier and later 

 dates, the hosts being Mr. J. Pierpont Morgan, Profes- 

 sor Charles F. Chandler, and Mr. James D. Hague. 



