EXPERIxMENT STATION RECORD. 



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



EDITORIAL DEPARTMENTS. 



Chemistry, Dairy Farming, and Dairying — The Editor and H. W. Lawson. 

 Meteorology, Fertilizers and Soils (including methods of analysis), and Agricultural 



Engineering — W. H. Beal. 

 Botany and Diseases of Plants — Walter H. Evans, Ph. D. 

 Foods and Animal Production— C. F. Langworthy, Ph. D. 

 Field Crops — J. I. Schulte. 



Entomology and Veterinary Science — E. V. Wilcox, Ph. O. 

 Horticulture — C. B. Smith. 

 With the cooperation of the scientific divisions of the Department. 



CONTENTS OF VOL. XV, NO. 3. 



Editorial notes : " ^^s^- 



State aid of the experiment stations 209 



Need of increased funds for the stations 210 



Experiment station work in Alaska 212 



Farm mechanics as a department of agricultural instruction 213 



New building for farm mechanics at the Iowa College of Agriculture and 



Mechanic Arts 215 



Recent work in agricultural science 221 



Noies ^ 311 



SUBJECT LIST OF ABSTRACTS. 



CHEMISTRY. 



Nitrogen in protein bodies, T. B. Osborne and I. F. Harris 221 



Precipitation limits of gome proteins, T. B. Osborne and I. F. Harris 222 



Specific rotation of some proteins, T. B. Osborne and I. F. Harris 222 



Globulin of walnuts and the butternut, T. B. Osborne and I. F. Harris 222 



Carbohydrate group in protein molecule, T. B. Osborne and I. F. Harris 222 



The tryptophane reaction of various proteins, T. B. Osborne and I. F. Harris. . 223 



The albuminoid substances in corn, Donard and Labbe 223 



The analysis of oils and allied substances, A. C. Wright 223 



Olive oils and ohve-oil substitutes, L. ]M. Tolman and L. S. Munson 223 



Does cholesterol occur in olive oil ? A. H. Gill and C. Ci. Tufts 223 



Modification of Babcock-Blasdale viscosity test for olive oil, H. Abraham 223 



Viscosity of the soap solution in oil analysis, H. C. Sherman and H. Al)raliani . . 223 



A contribution to the chemistry of rice oil, C. A. Browne, jr 223 



Determination of commercial glucose, A. E. Leach 224 



Disappearance of reducing sugar in sugar cane, H. W. Wiley 224 



Coloring matter in yellowish-gray sugar, Y. Nikaido 224 



The volumetric determination of nitric nitrogen, Debourdeaux 224 



Colorimetric method for small (luantities of potassium, L. A. Hill 224 



On certain factors influencing the precipilation of cahduin and magnesium by 



sodium carbonate, J. M. Stilhnan and A. J. Cox 225 



I 



