EXPERIMENT STATION RECORD. 



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

 Assistant Editor: H. L. Knight. 



EDITORIAL DEPARTMENTS. 



Meteorology, Soils, and Fertilizers — W. H. Beal. 



Agricultural I3otany and Vegetable Pathology — W. H. Evans, Ph. D. 



Field Crops — J. I. Schulte. 



Horticulture and Forestry — E. J. Glasson. 



Zootechny and Human Nutrition — C. F. Langworthy, Ph. D. 



Agrotechuy, Dairy Farming, and Dairying — R. D. Milner. 



Agricultural Chemistry — W. H, Beal, C. F. Langworthy, and R. D. Milner. 



Economic Zoology, Entomology, and Veterinary Medicine — E. V. Wilcox, Ph. D. 



Rural Engineering — G. A. Griffin. 



Rural Economics — J. B. Morman. 



Agricultural Education — D. J. Crosby. 



CONTENTS OF VOL. XX, NO. 5. 



Editorial notes: Page. 

 The principal function of the Association of American Agricultural Col- 

 leges and Experiment Stations 401 



Affiliation of associations devoted to agi'icultural science 402 



The place of extension work in the association 402 



Educational aspects of the National Corn Exposition 403 



Convention of Association of American Agricultural Colleges and Experiment 



Stations, 1908 406 



Recent work in agricultural science 417 



Notes • 492 



SUBJECT LIST OF ABSTRACTS. 



agricultural chemistry. 



Determination of sodium and potassium in silicates, Thomsen 417 



Determination of {)otash in soils, Ronnet 417 



Volumetric method for phosphoric acid in superphosphates, Kohn 418 



The volumetric determination of phosphoric acid in superphosphates, Moeller. . 418 



The titration of phosphoric acid in superphosphate solutions, Kohn and Schucht 418 



The systematic investigation of drinking waters, Romijn 418 



Determination of combined carbonic acid in water. Lunge 418 



The determination of combined carbon dioxid in water, Noll 418 



Examination of eggs with colored shells, Borchmann 418 



The formic acid content of honey, Farnsteiner 418 



Methods for analysis of maple products and detection of adulterants, Bryan. . . 419 



Amount of soluble silicic acid in cocoa beans, Matthes and Rohdich 419 



Plant fats and fat mixtures used in chocolate manufacture, Sachs 419 



Comparative tests of different methods of measuring fat in milk, Dehaye 419 



A milk constant as a basis of judgment, Cornalba 419 



Study of recent methods of analysis of butter, Jean 419 



The nonsaponifying constituents of cocoa butter, Matthes and Ackermann 419 



Refractometric analysis of cognac, Frank 420 



Examination of feces for nitrogen of metabolic products, Stutzer et al 420 



The analysis of coal-tar creosote and cresylic acid sheep dips, Chapin 420 



The analysis of turpentine by fractional distillation with steam, Geer 420 



The examination of turpentine and turpentine substitutes, Coste 420 



Proceedings of the Sixth International Congress of Applied Chemistry 421 



Repr Tt on progress in industrial inorganic chemistry, Holbling and Preiss 421 



I 



