EXPERIMENT STATION RECORD. 



Editor: E. W. Allen, Ph. D., Chief, Office of Experiment Stations. ^ '^'^ky 



Assistant Editor: H. L. Knight. ^nW Yoi^i^ 



EDITORIAL DEPARTMENTS. 



Agricultural Chemistry and Agrotechny— E. H. Nollaxt. 

 Meteorology-, Soils, and Fertilizers j^- H- ^|^J^^^^^^_ 



Agricultural Botany, Bacteriology, and Plant Pathology H^- ^ ^q^' ^^' ^' 



T7I- 1 1 /-^ /J. I. SCHULTE. 



FieldCropsj^ J) LucKETT. 



Horticulture and Forestry — E. J. Glasson. 



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



Foods and Human Nutrition g ^- Langwoethy, Ph. D., D. Sc. 



H. L. Lang. 



Zootechny, Dairying, and Dairy Farming] 



Veterinary Medicine {l^ ^--- 



Rural Engineering — R. W. Trullingeb. 

 Rural Economics — E. Merritt. 

 Agricultural Education — C. H. Lane. 

 Indexes — M. D. Moobe. 





M. D. Moobe. 



CONTENTS OF VOL. 36, NO. 4. 



Editorial notes: Page. 



A decade under the Adams Act 301 



Recent work in agricultural science 311 



Notes 397 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry — AGRDTECHNY. 



Grain of the tobacco leaf, Ridgway 311 



The chemical composition of Ume-sulphur animal dips, Chapin 311 



The arsenates of lead, I, McDonnell and Smith 313 



Lead arsenates. Reactions of lead nitrate and acetate, Smith 313 



Researches on organic periodids, II, Emery and Palkin 313 



Preparation of bromoacetylglucose and certain other bromoacetyl sugars. Dale. 313 



Condensation of thiobarbituric acid with aromatic aldehydes, Dox and Plaisance 313 



Concerning certain aromatic constituents of urine, Anderson 313 



The chemistry of the vitamins, Williams 314 



The chemical nature of the "vitamins," II, Williams and Seidell 314 



Products of action of certain amylases on soluble starch, Sherman and Punnett. 315 



Experiments upon starch as substrate for enzym action, Sherman and Baker. . 315 



Methods for the study of proteolytic action, Sherman and Neun 316 



' 'Nitrogen determinations by direct nesslerization, Folin and Denis 316 



Estimation of calcium in ash of forage plants and animal carcasses, Kuzirian. . 317 



- Modification of Pratt method for determination of citric acid, Willaman 317 



I 



