EXPERIMENT STATION RECORD. 



Editor: E. W. ALLEN, Ph. D., Assistant Director. 

 Assistant Editor: 11. L. Knight. 



EDITORIAL DEPARTMENTS. 



Agricultural rhpmistry and Agrotechny — L. W. Fetzer, Ph. D., M. D. 



Meteorology, Soils, and ^''^^rtilizersi^ -^y* ^^^j^^^'^^. 



H. Evans, Ph. D. 

 H. Long. 



Agricultural Botany, Bacteriology, Vegetable Pathology] ^r' 



T?,-„i^ rv V, /J- I- Schulte. 

 Field Cropsjj ^ ^^^^,^^ 



Horticulture and Forestry — E. J. Gla.sson. 

 Foods and Human Nutriiion — (". F. Langworthy, Ph. D. 

 Zootechny, Dairying, and Dairy Farming — E. W. Morse. 

 Economic Zoology and Entomology — W. A. Hooker. 

 Veterinary Medicine/)^ \^- ""oker. 



^ \L. W . I ETZER. 



Rural Engineering . 



Rural Economics — B. B. Hare. 



Agricultural Education/^- J^' l'TnI^' 



CONTENTS OF VOL. XXV, NO. 3. 



Page. 



Recent work in agricultural i-cience 201 



Notes '. 300 



SUBJECT LIST OF ABSTRACTS. 



AGRICULTURAL CHEMISTRY — AGROTECHNY. 



The organic chemistry of nitrogen, Sidgwick 201 



Studies in the chlorophyll group, V, ]\Iarchlewski and Barabass 201 



The nitrogenous substances of a nonprotein nature in the sugar beet, Smolenski. . 201 



Note on the nitrogenous constituents of grape must, Le^nds 201 



The chemical ripening processes of fi'uits, Ritter 202 



Post-ripening of fi'uits, particularly as to tannin, Manaresi and Tonegutti 202 



Investigations in regard to the hellebore group, I, II, Keller 202 



Is the action of rennet one of cleavage? Couvi-em- 202 



A contribution as to the oxidases and reductases of cow's milk, Kooper 202 



The chemistry of honey formation, Kiistenmacher 203 



In regard to the determination of nitrogen by the Kjeldahl method, Andersen. . 203 



Estimation of total nitrogen by the formaldehyde titration method, De Jaser. . . 203 



Bacteriological method for available organic nitrogen, McCandless and Atkinson 204 



Separation of calcium from magnesium, Murmann 204 



Precipitation of magnesium as ammonium magnesium arsenate, Raffa 204 



Titranietric determination of sulphuric acid by barium chromate, Roemer 204 



Chemical analysis of moor soils and its value, von Feilitzen 204 



Determining water and citrate-soluble phosphoric acid. Pellet 205 



The determination of the free acid in superphosphates, Guthrie and Ramsay. . 205 



In regard to the analysis of Thomas slag powder, Woy 205 



The present status in regard to the valuation of Thomas slag powders, Woy 205 



I 



