EXPERIMENT STATION RECORD. 



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

 Assistant Editor: H. L. Knight. 



EDITORIAL DEPARTMENTS. 



Agricultural Chemistry and Agjrotechny — L. W. Fetzer, Ph. D., M. D. 



Meteorology, Soils, and Fertilizersj^ ; ^^ Trullinger. 



Agricultural Botany, Bacteriology, and Plant Pathologyj^y ^- f^Y^^' ^^' ^' 



vi^^A r,..^JJ- I- SchxjLTE. 



Field Crops|(. ^j Tucker, Ph. D. 



Horticulture and Forestry — E. J. Glasson. 



^ , , XT xw V /C. F. Langworthy. Ph. D., D. Sc. l-IBRARY 



Foods and Human Psutritionj^ L. Lang. NEW YOR 



Zootechnv, Dairying, and Dairy Farming — ^H. Webster. KnTAJwir a 



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



,- . . nf J- "• fW. A. Hooker. QARDtlx. 

 \etennary MedicineJL. ^y. Fetzer. 



Rural Engineering — R. W. Trullinger. 

 Rural Economics — E. Merritt. 

 Agricultural Education — C. H. Lane. 

 Indexes — M. D. Moore. 



CONTENTS OF VOL. XXXI, NO. 9. 



Page. 



Recent work in agricultural science 801 



Notes 900 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry — agrotechny. 



Ammonia-soluble inorganic soil colloids, Fraps 801 



Bordeaux mixture. — I, Physico-chemical studies, Butler 802 



An introduction to the chemistry of plant products, Haas and Hill 803 



On the demonstration of carotinoids in plants. Van Wisselingh 803 



The sugars and their simple derivatives, Mackenzie 804 



The differentiation and specificity of starches, Reichert 804 



Glycerids of butter fat, Amberger 804 



The density and solution volume of some proteins. Chick and Martin 804 



The factors concerned in the solution and precipitation of euglobulin. Chick. . 804 



Hydrolysis of organic phosphorus compounds by dilute acid and alkali, Plimmer 805 



Action of hydrogen chlorid upon diastase, I, Panzer 806 



Action of hydrogen chlorid upon invertase, II, Panzer 806 



Saccharifying diastase of malt and the reaction of the medium, Van Laer 806 



Book of methods 806 



Winkler's method for carbon dioxid in water, Casares and Pina de Rubies 806 



Colorimetric determination of small amounts of manganese in water, Schowalter . 806 



A note on the Hopkins and Cole modification of Adamkiewicz test, Mottram 807 



The estimation of tyrosin in proteins by bromination, Plimmer and Eaves 807 



The sepiration of cystin and tjTosin, Plimmer 807 



I 



