LIST OF PUBLICATION'S. 



[Vol. 35 



U. S. Department of Agriculture — Contd. U. S. Department of Agriculture — Contd 



Bureau of Soila — Coutd. Page. 



Field Operations, 1915 — 



Soil Survey of Lafayette 

 Parish, Louisiana, A, H. 

 Meyer and N. M. 



Kirk 319 



Scientific Contributions :a 



A Simple, Efficient, and Eco- 

 nomic Filter, S. L. Jodidi 



and E. H. Kellogg 314 



The Conifer Leaf Oil Industry, 



A. W. Schorger 317 



Nitrification and Total Nitro- 

 gen as Affected by Crops, 



etc., C. A. Jensen 321 



Determining Types of Genera, 



O.F.Cook 328 



The Sorting, Sizing, Packing, 

 and Storing of Fruit, E. L. 



Markell 342 



Renewing Old Citrus Trees, 



A. D. Shamel 343 



Germinating Coconuts, O, F. 



Cook and C. B. Doyle 344 



Growing Melons on Trees, 



J. E. Higgina 344 



Anopheles punctipennis, a Host 

 of Tertian Malaria, W. V. 

 King 360 



Scientific Contributions — Contd. Page- 

 Development of Malaria Para- 

 sites in Three American 

 Anopheles, W. V.King 360 



Some New Neotropical Simu- 

 lida?, F. Knab 362 



Two New Species of Arrhen- 

 ophagus with Remarks, 

 A. A. Girault 365 



Notes on Two South American 

 Parasitic Hymenoptera,A. A. 

 Girault 365 



Three New British Chalcidoid 

 Ilymenoptera, With Notes, 

 A. A. Girault 365 



The Biochemical Analysis of 



Nutrition, C.L. Alsberg... 368 



The Stage of Piroplastna bige- 

 mium Which Occurs in the 

 Cattle Tick. H. Crawley .... 385 



Economics of Highway En- 

 gineering, L. I. Hewes 389 



What the Highway Engineer 

 Should Know About Bitu- 

 minous Materials, P. Hub- 

 bard 390 



A Simple Ice-Precooling Plant, 

 Mary E. Pennington 391 



Agricultural Education, A. C. 



Monahan and C. H. Lane.. 394 



a Printed in scientific and technical publications outside the Department. 



