1918] CONTENTS. XXI 



States Relations Sebvtce: Pas«. 

 Syllabus 30, Illustrated Lecture on Cow-testing and Dairy Records, 



D. Stuart 95 



Report on Experiment Stations and Extension Work in the United 



States, 1916 898 



Federal Legislation, Regulations, and Rulings Affecting Agricultural 



Colleges and Experiment Stations, revised to July 15, 1917 95 



Weathee Bureau: 



National Weather and Crop Bulletin 32, 1917 509 



National Weather and Crop Bulletin 1, 1918 810 



National Weather and Crop Bulletin 4, 1918 717 



National Weather and Crop Bulletin 7, 1918 717 



U. S. Monthly Weather Review, vol. 45— 



Nos. 7-S, July-August, 1917 208,209 



Nos. 9-10, Sef)tember-October, 1917 509, 510, 511 



Nos. 11-12, November-December, 1917 811,812 



Climatological Data, vol. 4 — 



Nos. 5-6, May-June, 1917 13 



Nos. 7-8, July-August, 1917 318 



Nos. 9-30, September-October, 1917 618 



Report, 1917 617 



Daily River Stages, 1915, pt. 13 590 



Daily River Stages, 1916, pt. 14 590 



SCIENTIFIC CONTRIBUTIONS.* 



Arnold, J. H., and NichoUs, W. D., Successful Farming in the Blue-grass 



Region of Kentucky 693 



Ashbrook, F. G., Value of Potatoes in Swine Feeding 535 



Back, E. A., Florida and the Mediterranean Fruit Fly 262 



Back, E. A., and Crossman, S. S., Miscible Oil v. Fish-oil Soap Sprays for 



the Control of Florida Aleyrodids 58 



Baker, A. C, Correct Name for Our Apple-grain Aphis 462 



Baker, A. C, On the Chinese Gall (Aphididse) 764 



Baker, F. S., Aspen as a Temporary Forest Type 847 



Banks, N., Index to the Literature of American Economic Entomology 256 



Beals, E. A., Forecasts of Weather Favorable to an Increase of Forest 



Fires 317 



Benson, O. H., Accomplishments of Boy.s' and Girls' Clubs in Food Pro- 

 duction and Conservation 795 



Biesterfeld, C. H., and Evenson, O. L., Estimation of Fat in Condensed 



Milk and Milk Powders 314 



Borden, A. D., Chrysanthemum Midge 160 



Brand, C. J., Bureau of Markets in Its Relation to the Conservation of 



Bryan, Mary K., Marking Microscope Slides 732 



Chapman, H. H., and Behre, C. E., Growth and Management of Pinon in 



New Mexico 644 



Clark, W. M., and Lubs, H. A., Colorimetric Determination of Hydrogen- 

 ion Concentration and Its Applications in Bacteriology 225 



Cobb, N. A., Segmentation in Nematodes 254 



1 Printed in scientiflc and teclinical publications outside the Department. 



