EDITORIAL. 607 



Kellner's work illustrates the skill and the industry of the man 

 and his mastery of this intricate subject. Its brilliant and advanced 

 character ranked him with the foremost leaders in the world, and 

 made him a worthy successor to such men as Wolff, Henneberg, and 

 Kiihn. 



The theories and reforms worked out by Kellner were embodied in 

 his well-known book on the nutrition of farm animals (Die Er- 

 nJihrung der landwirtschaftlichen Nutztiere), an important product 

 of his life work, published in 1905, which rapidly passed through 

 five editions. This was followed by a smaller manual on the princi- 

 ples of feeding (Gundziige der Futterrungslehre), three editions of 

 which have appeared, and which has been translated into several 

 languages. 



Since 1905 Doctor Kellner lind edited Die landwirtschaftlichen 

 Vet'suchs-jStationen, the organ of the German experiment stations and 

 one of the foremost periodicals of its kind in the world; and since 

 1902 he had been in editorial management of the Zentralhlatt fur 

 Agrikultv-rchemie^ a standard abstract journal of wide scope. He 

 was also a frequent contributor to the leading agricultural press of 

 Germany, and since 1907 had furnished the data and discussion on 

 feeding for the Landwirtschaftlicher Kalender^ in which his starch 

 values were employed. In recent years he had published several 

 summaries of cooperative feeding trials on horses, cattle, and swine. 



So far as his time permitted he entered energetically into the 

 activities of various agricultural bodies and of the German Agricul- 

 tural Society. He had been a member of the executive committee of 

 the latter society since 1904, and had frequently taken part in its 

 meetings and delivered many addresses before its sections. A few 

 weeks before his death he had accepted election to the special com- 

 mittee on feeding and was to have entered at once upon its work. 

 Kellner's experience also made him a leading force in the German 

 Agricultural Council, a national organization composed of repre- 

 sentatives from various parts of the Empire; and he was a member 

 of the Agricultural Council of Saxony, and on the advisory council 

 of the Imperial Biological Institute for Agriculture and Forestry. 



Since 1903 Kellner had been president of the Association of Ger- 

 man Experiment Stations, and was an active worker in it for many 

 years. He felt the responsibility of the control work with which his 

 station was charged, and gave his personal attention to trade relations 

 and questions involved in this control. He had the courage of his 

 convictions when once his mind was made up, and stood uncompro- 

 misingly for what he considered to be the right. He did not fail the 

 association in offensive or defensive steps to maintain its position 

 or enforce its obligations. 



