EXPERIMENT STATION RECORD. 



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

 Assistant Editor : H. L. Knight. 



EDITORIAL DEPARTMENTS. 



Agricultural Cliemistry and Agroteehny — E. H. Nollau. 

 Meteorology, Soils, and Fertilizers {J^' ^^; ^J^llinger. 



Agricultural Botany, Bacteriology, and Plant Pathology 0^ ^- ^l^^^' ^^^' ^' 



Field Crops— G. M. Tucker, Ph. D. 



Horticulture and Forestry — E. J. Glasson. 



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



[C. F. Langworthy, Ph. D.,. D. Sc. 

 Foods and Human Nutrition <H. L. Lang. 



[O. F. Walton, Jr. 



Zootechny, Dairying, and Dairy Farming — H. Webstee. 



^T i. ■ -MT T • /W. A. Hooker. 



Veterinary Medicmejj^ ^ ^^.^^.^^^^^ 



Rural Engineering — R, W. Trullingeb. 

 Rural Economics — E. Merritt. 

 Agricultural Education — C. H. Lane. 

 Indexes — M. D. Mooee. 



CONTENTS OF VOL. XXXIV, NO. 6. 



Pago. 



Recent work in agricultural science 501 



Notes 600 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry — agrotechny. 



Tliirtieth convention of Association of Official Agricultural Chemists, 1913 501 



The water-soluble nitrogen of some common feeding stuffs, Hart and Bentley.. 501 



The free amino nitrogen of the proteins of ox and horse serum, Hartley 501 



On constitutents of oil of cassia, Dodge and Sherndal 501 



The oil of the wild grape seed, Vitis riparia, Beal and Beebe 501 



The resins in bops from various geogi-aphic localities, Russell 502 



Isoprene from /3-pinene, Schorger and Sayre 502 



Researches on, organic periodids, I, Emery 502 



Chemical nature of enzyms, Bokorny 502 



Phosphatases in malt, Adler 502 



The composition of frozen oranges and lemons, Young 502 



The exaixdnation of a sediment found in "Alpine milk," Sato 503 



A method of converting the Duboscq colorimeter into a nephelometer, Bloor . . . 503 



Titrimetric determination of ammonia according to Winkler's method , Bernard . 503 



Simple method for determination of small amounts of potassium, Hamburger. . . 503 



County agents' calcimeter, McHargue 503 



Methods for determination of carbon dioxid and a new absorption tower, Truog. . 504 



The determination of iodin in the presence of organic matter, Krauss 504 



I 



