EXPERIMENT STATION RECORD. 



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

 Assistant Editor: IL L. Knight. 



EDITORIAL DEPARTMENTS. 



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

 Meteorology, Soils, and Fertilizers {^-H. ^^^^-^^.^^^ 



Agricultural Botany, Bacteriology, and Plant Pathology {^^- ^- ^^^0^' ^^' ^" 



Field Crops— G. M. Tucker. Ph. D. 



Horticulture and Forestry — E. J. Glasson. 



T? J J rr T^T I- -t^- fC. F. Langworthy, Ph. D., D. Sc. 



Foods and Human Nutrition <^ XT t t.v.^ 



[ti. L. LANG. tlRtt 



Zootechny, Dairying, and Dairy Farming — H. Webster. fAl^y 



Economic Zoology and Entomology — W. A. Hooker, D. V. M. ''^W y^p^ 



Ve.erin.^Medicine{W- A. Hookek. ^^^'C^!^ 



Rural Engineering — R. W. Trullinger. *<^^iy 



Rural Economics — E. Merritt. 

 Agricultural Education — C. H. Lane. 

 Indexes — M. D. Moore. 



CONTENTS OF VOL. XXXII, NO. 4. 



Editorial notes: 



The habit of concentration 301 



The qualities and conditions of research 302 



A plea for the small laboratory 306 



Recent work in agricultural science 308 



Notes 395 



SUBJECT LIST OF ABSTRACTS. 



AGRICULTURAL CHEMISTRY — AGROTECHNY. 



Encyclopedia of technical chemistry, edited by Ullmann '. . . 308 



A popular treatise on the colloids in the industrial arts, Arndt and Katz 308 



Chemical technology of the textile fibers, Stirm 308 



The textile fibers, Matthews * 308 



Plant micro-chemistry, Tunmann 308 



Nutritional physiology of yeast cell during alcoholic fermentation, Rubner 308 



Inhibiting action of poisons on micro-organisms. — Fluorin compounds, Wehmer 308 



The coloring matter of blossoms and fruits, Willstatter 309 



Constituents of Solanu mangustifoliuin: Solangustin, Tutin and Clewer 309 



Refractometry, I and II, Shook 309 



Determination of nitrogen by Kjeldahl method \vith vanadium pentoxid,Oefele. 309 



New modification of the Kjeldahl method, Marino and Gonnelli 310 



Decomposition of organic substances in Kjeldahl method, Carpiaux 310 



A simplification of Bang's micro-Kjeldahl method, Kochmann 310 



Nephelometry in the study of nucleases, Koker and Graves 310 



Soil analysis and estimation of colloids in soils. Van der Leeden and Schneider. 311 



Estimation of the lime requirement of soils, Moulton and Trowbridge 311 



Reactions for detecting nitrites in drinking water, Bornand 311 



I 



