[Vol. 43, 1920.] 



LIST OF PUBLICATIONS. 



IX 



I . S. Department of A(iriiuilurc — Cini. 



V>\\\. 84;', Production of T.nnilxM-, 



Lath, and Sliinf^U's in 1018. V. 



H. Sniitii and A. II. l*it>rson__ 150 



Fanners' Bui. 1092, I'rairio Rice 



Culture iu the United States, 



C. E. Chanihliss 130 



Circ. 73, Tiie Work of the San 

 Antonio l']xperlnieut Farm in 



lOlS, C. 11. Jjetteer 120, 



134,144,153,171 

 Bureau of Ch(>niistr.v : 



The Food and Druii Manual, 



1020 10 1 



Bureau of Crop Estimates: 



Mo. Crop Rptr., vol. 6, No. 



4, Apr.. 1020 103 



Bureau of IMarkets: 



Market Kptr., vol, 1— 



No. 14, Apr. 3, 1020__ 170,10 1 



No. 15, Apr. 10, 1920 194 



No. 1(5, Apr. 17, 1020-__ 144, 

 178,104 

 No. 17, Apr. 24. 1920__- VM 

 Bureau of I'ulilic Roads: 



ruhlic Roads, vol. 2, No. 20, 



Dee., 1010 ISG 



Bureau of Soils: 



Field Operations, 1917 — 

 Soil Survey of Hamil- 

 ton County, Iowa, K. 

 Kspe and L. E. Lind- 



ley 122 



Soil Survey of Sargent 

 Countv, N. Dak., F. 

 Z. Hutton, P.. II. Hen- 

 drickson, M. Thomas, 



and S. Buster 123 



Soil Survey of Waupaca 

 County, Wis., W. J. 

 CJeih, C. Lounsbury, 

 and M. O. Tosterud__ 123 

 Weather Bureau : 



Mo. Weather Rev., vol. 48, 



Nos. 1-2, Jan.-Feh., 1020. 11<1. 

 117,118,110,157 

 Natl. Weather and Crop 

 Buls.— 



No. 17, Apr. 27, 1920 118 



No. 18, May 4. 1020 110 



Sclt-nlific Contrihulions : ^ 



The Food of the Small Sea 

 llerrinjr and Anunonia 

 and .\mins as End Prod- 

 ucts of its Decomposition, 

 F. C. Weher and .L B. 

 Wilson 111 



* Printed in Sficntilic and teclinical piil)lications outside tlie Department. 



r. N. Deijartmcnt of Affriculture — Con. 



Page. 

 Scientific Contributions — Con. 



Determination of Saccharin 

 in Foods, C. B. Gnadin- 

 ger 115 



Delicate Test for Strychnin, 



H. E. Buc IIG 



Preliminary Study of Some 

 of the Physical and 

 Chemical Constants of 

 Balsam Peru, E. C. Mer- 

 rill 110 



The Influence of Phosphates 

 on the Action of Ali)ha- 

 Crotonic Acid in Plants, 

 J. J. Skinner and F. R. 

 Reid 131 



The Forestry of the Proph- 

 ets, A. Leopold J 148 



Forestry Movement of the 

 Seventies in the Intei'ior 

 Department under Schurz, 

 .L S. Peyton 148 



Efficient Regulation o f 

 Grazing in Relation to 

 Timber Production, .1. T. 

 Jardine 148 



The Relation of Insect 

 Losses to Sustained For- 

 est Yield, W. J..Pearce__ 148 



Boi'deaux-oil Enndsion, .1. 

 R. Winston and W. W. 

 Yotbers 157 



The Porto Rico INIoIe Cricket 

 in South Carolina and 

 Florida, F. II.Chittenden_ 150 



The Digestibility of Chicken 

 Skin, E. F. Kohman and 

 H. A. Shonle 1G4 



Summary of Bureaii of 

 Chemistry Investigations 

 of Poisoning Due to Ripe 

 Olives, G. G. Debord, R. 

 B. Edmondson and C. 

 Thom 



What and How to Feed for 

 Satisfactory Egg I'roduc- 

 tion, A. R. Lee 174 



Duration of I m m u n i t y 

 Against Hog Cliolera Fol- 

 lowing Simultaneous Ino- 

 culation of Young Pigs, 

 W. B. Niles and J. II. 

 Rietz 184 



