LIST OF PUBLICATIONS. 



rvoi. S8 



U. S. Department of Agriculture — Contd. 



Office of the Secretary— Contd . Pase. 

 Circ. 105, Method of Saki of 

 War Emergency Seed Clorn 

 to Farmers in C ertain States 

 by the United States De- 

 partment of Agriculture 834 



Rpt. 115, The Distribution of 

 Softwood Lumber in the 

 Middle West: Wholesale 

 Distribution, O. M. Butler. . 847 

 Rpt. 116, The Distribution of 

 Softwood Lumber in the 

 Middle West: Retail Dis- 

 tribution, 0. M. Butler 847 



Geography of the World's 

 Agriculture, V. C. Finch 



and O.E. Baker 895 



Bureau of Animal Industry: 



White Snakeroot or Richweed 

 (Eupalorium urticn'folium) 

 as a Stock-poisoning Plant, 

 C. D. Marsh and A. B. 



Clawson 883 



Bureau of Markets: 



Seed Rptr., vol. 1, No. 5, 



Mar. 1, 1918 841 



Bureau of Soils: 



Field Operations, 1916— 



Soil Survey of Hemp- 

 stead County, Ark., A. E. 

 Taylor and W.B.Cobb. 812 

 Soil Survey of Fillmore 

 County, Nebr., A. H. 

 Meyer, C. E. Collett, 



and N. A. Bengtson 811 



Weather Bureau: 



Nat. Weather and Crop Bui. 1, 



1918 810 



Mo. Weather Rev., vol. 45, 



Nos. 11-12, Nov.-Dec, 1917. 812 

 Scientific Contributions: ^ 



An Improved Automatic Pi- 

 pette-washing Device, A. V. 



Fuller 803 



The Determination of Arsenic 

 in Insecticides by Potassiiun 



lodate, G. S. Jamieson 804 



Influence of Time of Harvest, 

 Drying, and Freezing of 

 Spearmint upon the Yield 

 and Odorous Constituents of 



the Oil, F. Rabak 807 



The Utilization of Waste To- 

 mato Seeds and Skins, F. 



Rabak 808 



The Effect of Incomplete Dis- 

 tillation on the Yield of 

 Products in the Destructive 

 Distillation of Birch, R. C. 

 Palmer 808 



U. S. Department of Agriculture — Contd. 



Scientific Conti'ibutions — Contd. Page. 



Tln^ Influence of Moisture on 

 the Yield of Products in the 

 Destructive Distillation of 

 Hardwood, R. C. Palmer and 

 H. Cloukey 808 



The Effect of Catalyzers on the 

 Yield of Products in the 

 Destructive Distillation of 

 Hardwoods, R. C. Palmer. . 808 



Some Experiments on the 

 Pulping of Extracted Yel- 

 low Pine Chips by the Sul- 

 phate Process, O. Kress and 

 C. K. Textor 809 



Sulphite Turpentine, A. W. 



Schorger 810 



A Method of Feeding Manure 

 to Orange Trees, A. D. 

 Shamel 845 



The Indicator Significance of 

 Native Vegetation in the 

 Determination of Forest 

 Sites, C. F. Korstian 846 



The Relation of Germination 

 in the Greenhouse and Nur- 

 sery, S. B. Show 846 



Aspen as a Temporary Forest 

 Type, F. S. Baker 847 



Studies of Yield and Repro- 

 du(',tion of Western Yellow 

 Pine in Arizona and New 

 Mexico, G. A. Pearson 847 



Diagnosis of a New Pycnono- 

 tine Family of Passeriformes, 

 H. C. Oberholser 856 



Important Foreign Insect Pests 

 Collected on Imported Nur- 

 sery Stock in 1917, E. R. 

 Sasscer 857 



A Key to the Species of the 

 Genus Ceresa Occurring 

 North of Mexico and the De- 

 scription of a New Species, 

 E. H. Gibson and Emma 

 Wells 858 



Early Spring Syrphidse in Cali- 

 fornia and a New Pipiza, 

 W. M. Davidson 863 



Poisoned Bait for the Onion 

 Maggot, N. F. Howard 863 



Insecticide Te§ts with Diabro- 

 tica vittata, N. F. Howard . . . 864 



The States Relations Service 

 and the Cooperative Exten- 

 sion Service, A. C True 898 



* Printed in scientific and teclauical publications outside tlie Depai'tmtait. 



