837 



PnoF. Gttstav KunN. — Briof nicnfion was made in the last iiniiiLor of the Record 

 of the death of Professor Kiihn, the director of tiie ohlest Geniiaii experiment station. 



Gustav Kiihn was born in Paris, Jannary 20, 1840, where liis ])arents were then 

 sqjonrninif. Ho went to Ge)-many with his parents at an early age, attended the pnb- 

 lic schools in Leipsic and the nniversities at Liepsic, Gottin<;en, and Greifswald, 

 receivinj-- the degree of Doctor of Philosojdiy at the last-named place in 1801. From 

 1861 to 1862 he was assistant in cheniisiry in that institntion, and frum 1862 to 

 186."), assistant in the experiment station at Weende, near Giittingen, where he 

 stndied under Professor Hennehern- the methods of investig.ation in animal physiology 

 then being worked ont. In 1860 ho became director of the station at Brunswick, and 

 in 1867 he succeeded Kno]if as director of the station at Mockern, which position he 

 occupied at the time of his death. A list of the imncipal investigations published 

 by Kiihn is as follows: Experiments in feeding milch cows with clover forage; 

 Experiments on the digestibility of red clover at ditterent stages of growth ; Ex- 

 Ijoriments on the digestibility of red clover in bloom when fed green and when 

 made into hay; Experiments on the digestibility of green luceru and of hay from 

 the same; Experiments on the changes in digestibility of coarse fodders by feeding 

 them in connection with easily digestible materials, and on the digestibility of rape 

 cake, linseed cake, and extracted palm nut meal; On the formation of fat in the ani- 

 mal body; Experiments on the ettect of changes of food on the milk production of 

 cows, as well as on the digestibility of meadow hay and the changes occurring in the 

 same when small amounts of easily digestible foods were added ; Ex])eriments on the 

 etiect of food on the milk production of cows; Experiments on the digestibility of 

 wheat bran and its changes with different methods of preparation and feeding, as 

 well as on the digestibiMty of meadow hay when fed dry and when moistened; and 

 Whcdo milk and skim milk as human food. In addition to these he left a large amount 

 of unpublished work. This consists principally of experiments with the Pettenkofer 

 respiration apparatus on the formation of fat from carbohydrates in full-grown 

 oxen; investigations on the agreement between the artificial digestion of nitrogen- 

 free food constituents ;md their natural digestion by oxen; on the determination of 

 the nitrogen excreted in the form of metabolic products with the dung; report on 

 the digestibility of rye bran, dried brewers' grains, rice meal, cotton-seed meal, pea- 

 nut cake, extracted anise seed, ground beet residue, cocoa meal, and poppy-seed cake. 

 These, it is reported, will be prepared for publication. 



Dr. Oscar Bottcher, formerly tirst assistant, has been appointed acting director of 

 the MiJckern station. 



Dh. Max Sciirodt. — The death is reported of Dr. MaxSchrodt, since 1879 director 

 of the dairy division of the experiment station at Kiel, Germany. He was closely 

 allied with the development of that institution, which occupies a prominent position 

 among the institutions for dairy research. With Professor Ennnerling he issued the 

 Communications from the Agricultural and Dairy Experiment Statiim at Kiel in 1879, 

 and was a frequent contributor to agricultural journals. Of especial interest were 

 his annual reports of the dairy experiment station and school at Kiel. Dr. Schrodt 

 was 44 years old. 



