EXPERIMENT STATION RECORD. 



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

 Assistant Editor: H. L. Knight. * 



EDITORIAL DEPARTMENTS. 



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

 Meteorology, Soils, and Fertilizers{W- H.^Be^al,^^^^^^ 



Agricultural Botany, Bacteriology, Vegetable Pathologyj^y- ^- Jq^^"'^' ^^' ^^ 



^- 1 ^ n /J- I- SCHULTE. 



Field Crop5|(. ^^ ^^^^^^^ pj^ jy 



Horticulture and Forestry — E. J. Glasson. 



Foods and Human Nutrition{^- ^- L^Nr'"''^''''' ^^' ^" ^' ^'* 



Zootechny, Dairjang, and Dairy Farming — H. Webster. 



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



,. . . T,f J- • fW. A. Hooker. 



\ etermary Medicine|L. w. Fetzer. 



Rural Engineering — R. W. Trullinger. LIBRARY 



Rural Economics — E. Merritt. '(SBW YORIL 



Agricultural Education — C. H. Lane. -,. . . 



Indexes— M. D. Moore. BOTANICAL 



CONTENTS OF VOL. XXX, NO. 5. 



Editorial notes: Page, 



Journal literatm-e of agricultural science 401 



The essentials of a scientific paper 403 



Functions of criticism in agricultural science 407 



Recent work in agricultural science 409 



Notes 497 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry — AGROTECHNY. 



General chemistry of the enzyms, Euler, trans, by Pope 409 



In regard to the action and regeneration of proteolytic enzyms, Iwanoff 409 



Studies on enzym action. — IV, Occurrence of a urease in castor beans, Falk. . . 409 



Studies on enzym action. — V, Action of neutral salts on lipase, Falk 409 



Action of enzyms on hexose phosphate, Harding 410 



Nephelometry in the study of proteases and nucleases, I, Kober 410 



Nephelometry in the study of proteases, II, Kober 410 



On the purification of phosphatids, MacLean 410 



Tannic acid fermentation, I, Knudson 410 



Tannic acid fermentation. — II, Effect of nutrition on tannase, Knudson 411 



The biochemical activity of Bacillus lactis erythrogencs, Foster 411 



The velocity of sugar hydrolysis. — II, The r61e of water, Rosanoff and Potter. . 411 



The development of fat in the black walnut {Juglans nigra), II, McClenahan. . 411 



Zygadenin. — The crystalline alkaloid of Zygadenus intermedius, Heyl et al 412 



Zygadenin. — The crystalline alkaloid of Zygademisintemiedius, Loy et al 412 



Some constituents of the leaves of Zygadenus intennedius. Ill, Heyl and Hepner. 412 



Estimation of potassium in potassium silicate, Wilke-Dorfurt 412 



Microchemical detection of juglone in walnuts ( Juglans regia), Tunmann 412 



Further researches on the testing of oiled paprika, De Sigmond and Vuk ' 413 



Characteristic color reaction of soy-bean oil, Settimj 413 



The detection of shells in cacao and its preparations, Ulrich 413 



The relative value of indicators in the acid titration of wines, Marre 4 13 



X 



