EXPERIMENT STATION RECORD. 



[Vol. 40 



U. S. Department of Agriculture — Con. 



Office of the Secretary— Continued. Page. 



Circ. 129, Private Forestry, 

 H.S.Graves 744 



Circ. 130, Address of D. F. 

 Houston, Secretary of Agri- 

 culture, Before the Trans- 

 Mississippi Readjustment 

 Congress, Omaha, Nebr., 

 Feb. 20, 1919 789 



A .Method of Testing Farms in 

 the South for Efficiency in 

 Management, C. L. Good- 

 rich.. 789 



Bureau of Biological Survey: 



Annual Report of the Governor 

 of Alaska on the Alaska 

 Game Law, 1918, T.Riggs, jr. 751 

 Bureau of Crop Estimates: 



Monthly Crop Reporter, vol. 5, 



No. 3, Mar., 1919 792 



Forest Service: 



What the National Forests 

 Mean to the Water User, 



S.T.Dana 743 



Bureau of Markets: 



Food Surveys, vol. 2 — 



No. 20, "Mar. 12, 1919 765 



No. 21, Mar. 13, 1919 765 



Bureau of Public Roads: 



Public Roads, vol. 1. No. 9. 



Jan., 1919 788 



Weather Bureau: 



Monthly Weather Review Sup. 

 14, Mar. 15, 1919 715 



Climat. Data, vol. 5 — 



No. 11, Nov., 1918 716 



No. 12, Dec, 1918 716 



Scientific Contributions: 1 



The Distribution and Charac- 

 ters of Some of the Odorous 

 Principles of Plants, F. B. 

 Power 710 



Para Cymene. — I, Nitration, 

 Mononitrocyniene. 0. B. An- 

 drews 710 



Intermediates Used in the 

 Preparation of Photo-sensi- 

 tizinir Dyes.-— I, Quinolin 

 Bases. L. A. bfikeeka, J. K. 

 Stewart, and L. E. Wise. ... 710 



Intermediates Used in the 

 Preparation of Photo-sensi- 

 tizing Dyes. — II, Quater- 

 nary Hands. C. H. Lund 

 and L. E. Wise 711 



Synthesis of Photosensitizing 

 Dves. Pinaverdol and Pina- 

 cyanol, L. E. Wise. E I \ 

 Adams, .T. K. Stewart, and 

 C.H.Lund 711 



The Gravimetric and Volu- 

 metric Determination of 

 Mercury Precipitated as 

 Mercury Thiocyanate, OS. 

 Jamieson 712 



U. S. Department of Agriculture — Con. 



Scientific Contributions — Contd. Page- 



The Determination of Zinc and 

 Copper in Gelatin, G. S. 

 Jamieson 712 



A Sketch of Botanical Activity 

 in the District of Columbia 

 and Vicinity, P. L. Bicker. 726 



Chenopodium nuttallix. a Food 

 Plant of the Aztecs, W. E. 

 Safford 728 



Forest Research and the Wai . 

 E. H. Clapp 743 



Planting in Relation to the Fu- 

 ture of National Forests. 

 F.R.Johnson 743 



A I 'onvenient Method of Han- 

 dling Large Numbers of 

 Individuals in Life History 

 Studies of Insects, R. A. 

 Cushman 752 



The Development of a Port- 

 able Insectary, A. W. Young. 752 



Medical Entomology a Vital 

 Factor in the Prosecution of 

 the War, W.D.Pierce 754 



Two New Species of the Blat- 

 tid Qenus Arenivaga, A. N. 

 Caudell 754 



The Identity of Aphis circe- 



dis, A. C. Baker 7 5 ! 



Eradication of Poultrv Lice, 

 R. W. Well- ' 



A Note on the Economic Im- 



gortance of Samia a 

 . X. Ainslie 754 



The Lotus Borer, F. H. Chit- 

 tenden 



The California Pistol Case 

 Bearer (CoUophora sacra- 

 tnentdj.W, M. Davidson 757 



On the Lepidopterous Genus 

 Ov and Ita Larval Af- 

 finities, C. Ileiurich 



A New Genus of Lepidoptera 

 Allied to Leucoptora. 0. 

 Eeinrich 757 



Thne New spei ies of Diptera, 

 0. T. Greene 767 



District of o, lumbia Dipt 

 Tabanidse, W. L. M< Atee 

 and W. R. Walton 7">7 



Notes on Gadflies in the Flori- 

 da Everglades, 0. A. Hosier 



andT. E. Snyder 757 



The Dipterous Family Cyr- 

 tidse in North Ameri i 

 i'. R Oole 757 



\ Note on the Habit of /'• 

 gomyia affinis and other 

 Antho yi . I ■ i. c T. 

 Greene 



Some Muscoid Synonymy, 

 with i >ne New Genus, 0. H 

 T. Townsend 



1 Printed iu scientific and technical publication outside the Deportment 



