LIST OF PUBLICATIONS. 



[Vol. 41 



U. 8. Department of Agriculture — Con. 



Office of the Secretary — Con. Page. 



Circ. 139, Report of Com- 

 mittee Appointed by tlie 

 Secretary of Agriculture 

 to Con.sider the Subject 

 of Farm Life Studies as 

 One of the Divisions of 

 Research Worlv of the 

 Proposed Bureau of Farm 

 Management and Farm 



Economics 292 



Bureau of Crop Estimates : 



Mo. Crop. Rptr., vol. 5, No. 



6, June, 1919 294 



Bureau of Markets: 



Seed Rptr., vol. 2, No. 12. 



.Tune 7, 1919 235 



Bureau of Soils : 



Field Operations, 1916 — 

 Reconnoissauce Soil 

 Survey of the Middle 

 San Joaquin Valley, 

 Cal., L. C. Holmes, 

 E. C. Eckmann, ,T. W. 

 Nelson, and J. E. 



Guern.sey 211 



Soil Survey of the 

 Santa Maria Area, 

 Cal., E. B. Watson 



and A. Smith 21 1 



Field Operations, 1917— 

 Soil Survev of Saratoga 

 County, N. Y., E. T. 

 Maxon and .1. H. 



Bromley 212 



Scientific Contributions :^ 



The Statement of Acidity 

 and Alkalinity with Special 

 Reference to Soils, E. T. 



Wherry 205 



The Absorption of Calcium 

 Salts by Squash Seed- 

 lings, R. H. True and R. 



B. Harvey 221 



Fruit Growing in the Semi- 

 arid N o r t h w e s t, M. 



Pfaender 238 



Varieties of the Satsuma 



Orange, L. B. Scott 241 



Some Results from an Ex- 

 periment with Pruning as 

 Compared with no Prun- 

 ing of Full Bearing Wash- 

 ington Navel Trees, A. D. 



Shamcl 241 



New Pillar Rose, W. Van 



Fleet 242 



How Can the Private For- 

 est Lands Be Brought 

 under Forest Manage- 

 ment? W. N. Sparhawk__ 243 

 Public Control of Private 

 Forests in Norway, S. T. 



Dana 243 



'Printed in sciontific and technical 



U. S. DeiJurtnient of Agriculture — Con. 



Scientific Contributions — Con. Page, 

 Aerial Photography and Na- 

 tional Forest Mapping, R. 

 Thelen 244 



Presoakiug as a Means of 

 Preventing Seed Injury 

 Due to Disinfectants and 

 of Increasing Germicidal 

 Efficiency. H. Braun 246 



Influence of Soil Environ- 

 ment on the Root Rot of 

 Tobacco, J. Johnson and 

 R. E. Hartman 248 



i\I u t a n d a Ornithologica, 



VIII, H. C. Ol)erholser___ 250 



The Status of the Genus 

 Centronyx Baird, H. C. 

 Oberholser 2.50 



The Pi'oper Name for Limi- 

 cola platyrhyncha, H. C. 

 Oberholser 250 



The Taxonomic Position of 

 the Genus Ramphalcyou, 

 H. C. Oberholser 2.50 



The (Jeneric Name of the 

 Rook, H. C. Oberholser-- 2.50 



The Status of the Subgenus 

 Sicberocitta, H. C. Ober- 

 holser 2.50 



t^pizrUa nrhorea the Proper 

 Name for the Tree Spar- 

 row, H. C. Oberholser 250 



IVIethods in Entomological 

 Field Experimentation, 

 W. P. Flint, C. F. Turner, 

 and J. J. Davis 250 



Oi-ganization for Insect Sup- 

 pression, A. F. Burgess 250 



The Value of Crude Ar- 

 senious Oxid in Poison 

 Bait for Cutworms and 

 Grasshoppers, J. J. 

 Davis 251 



Important Foreign Insect 

 Pests Collected on Im- 

 ported Nursery Stock in 

 1918, E. R. Sasscer 251 



Experiments with Poison 

 Baits against Grasshop- 

 pers, D. A. Ricker 2.52 



Palmode-t pr(ef<t(inH and Its 

 Prey, A. N. Caudell 252 



A new Genus for Tritlgonia 

 trifasciata ( Homoptera ; 

 Eupterygidje), W. L. Mc- 

 Afee 253 



Preliminary Key to the 

 Neai-ctic Species of Eup- 

 teryx ( Homo]>tera ; Eup- 

 terygidip), W. L. McAtee_ 253 



Control of Plant Lice or 

 Aphis, F. H. Chittenden— 255 

 inililicatlons outs;ide the Department. 



