EXPERIMENT STATION RECORD. 



Editor: E. W. ALLEN, Ph. D., Chkf, Office of Experiment Stations. 

 Assistant Editor: H. L. Knight. 



EDITORIAL DEPARTMENTS. 



Agricultural Chemistry aud Agrotechny — E. H. Nollau. 

 Meteorology, Soils, and FertilizersjW-^- B|AL^^^^^^ 



Agricultural Botany, Bacteriology, and Plant Pathology! ^^ ^- I'Jyd ^' ^^" ^' 



-tr^- \A n ^ fJ- I- SCHULTE. 



Field Cropejj ^ l^ckett. 



Horticulture and Forestry — E. ,T. Glasson. 



Economic Zoology and Entomology — W. A. Hooker, D. V. M. 



Foods and Human Nutritionjg- F.^^^/^^orthy, Ph. D., D. So. 



Zootechny, Dairying, and Dairy FarmingjJJ- ^^""l^^^^^ 

 Veterinary MedicinejW- A. Hook-. 



Rural Engineering — R. W. Trullinger. 

 Rural Economics — E. Merritt. 

 Agricultural Education — C. H. Lane. 

 Indexes — M. D. Moore. 



CONTENTS OF VOL. 36, NO. 2. 



Editorial notes: Page. 



The training of investigators 101 



Graduate students as research assistants 103 



Physics in agricultural investigation 106 



Recent work in agricultural science 108 



Notes 196 



SUBJECT LIST OF ABSTRACTS. 



AGRICULTURAL CHEMISTRY — AGROTECHNY. 



The physical properties of colloidal solutions, Burton 108 



Influence of alcohol and glycerol on solution of casein, Robertson and Miyake. . 108 



The behavior of purified proteins towards proteolytic enzyms, Frankel 108 



Origin of the humin formed by the acid hydrolysis of proteins, II, Gortner 108 



Formation of hematoporphyrin in ox muscle during autolysis, Hoaglund 109 



Biochemical reaction of rancid fats, Vintilescu and Popescu 109 



On the localization of acids and sugars in fleshy fruits, Demoussy 110 



Chemistry and physiology of leaves of betel vine, II, Mann and Patwardhan. . 110 



The use of the centrifuge in analytical chemistry, Nolte -.--.•-- ^^^ 



Applicability of paper pulp filter to separation of solids from liquids, Jodidi. . . Ill 



"Plate " forms of ultrafiltration apparatus, Walpole Ill 



A note on the sulphone-phthaleins as indicators, Lubs and Clark Ill 



Determination of hydrogen-ion concentration of culture media, Clark and Lubs. Ill 



Determination of potassium by the perchlorate method, Hager and Kern Ill 



The estimation of potassium in presence of other substances, Bennett Ill 



I 



