EXPERIMENT STATION RECORD. 



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

 Assistant Editor: H. L. Knight. 



EDITORIAL DEPARTMENTS. 



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

 Meteorology, Soils, and FertilizersjW; H. |^^J;.^^^^^ 



Agricultural Botany, Bacteriology, and Plant Pathologyj^y- ^- E^ans, Ph. D. 



Field Crops— G. M. Tucker, Ph. D. ... LI8|^A» 



Horticulture and Forestry — E. J. Glasson. Mn»» 



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



Foods and Human NutritionJH. L. Lang. ^^TanICa 



[G. F. Walton, Jr. (Javi 



Zootechny, Dairying, and Dairy Farming — H. Webster. *<*-»t:iN 

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



Rural Engineering — R. W. Trullinger. 

 Rural Economics — E. Merritt. 

 Agricultural Education^ — C. H. Lane. 

 Indexes — M. D. Moore. 



CONTENTS OF VOL XXXIII, NO. 7. 



Editorial notes: Page. 



The element of chance in agricultural experimentation and investigation. 601 



Recent work in agricultural science 609 



Notes 699 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry — agrotechny. 



The acids and colloids of humus, Fischer 609 



A new reaction for clay, Rathgen 610 



Some methods for the determination of alkali in soils, Hare 610 



Comparative investigations of Thomas slag powders, Holle 610 



Methods of bacterial analyses of air, Riiehle 610 



Differentiation of yeast with aid of agglutinins, Lichtenstein-Rosenblat 611 



Picric acid as a titrametric standard, I'feifl'er 611 



The titrametric estimation of free sulphurous acid, Kedesdy 611 



A new simple method for determining free sulphurous acid, Sander 611 



Cause of loss of sulphuric anhydrid and chlorin by incinerating, O'Sullivan. . . 611 



Volumetric determination of copper, Zuccari 612 



Detection of vegetable fats in animal fats, Klostermann 612 



Separation of sterins from fats with digitonin. Berg and Angerhausen 612 



Methods for the quantitative estimation of mannit, Smit 612 



Determination of amino acid and polypeptid nitrogen, Adler : 613 



The presence of citric acid in natural wines, Blarez, Deniges, and Gayon 613 



Analysis of milk, Meillere 613 



Specific weight of milk serum in detection of water adulteration, Herramhof . . 613 



Lime-sulphur sprays, their composition and analysis, Ramsay 613 



Manufacturing dicyanamid from lime nitrogen, Grube and Nitsche 614 



Formation of furfurol from wood during the steaming process, Heuser 614 



Chemical utilization of southern pine waste, Whitaker and Bates 615 



The possibilities of hardwood distillation on the Pacific coast. Palmer 615 



Chemistry of the sugar industry, Wohryzek 615 



Progress made in the manufacture of beet sugar in 1913, von Lippmann 615 



I 



