30 



DEPARTMENT OF AGRICULTURE, BULS. 151-175. 



Quassia — Continued . 



Jamaica, forms, descriptions, extraction methods, 



etc .' . 165 



Surinam, constituents, forms, etc., comparison 



with. Jamaica quassia 165 



Quassiin — 



chemical nature, extracts from publications 165 



extraction from solutions, method 165 



insecticide, use 165 



nature and description 165 



purity, determination 165 



solubility, tests 165 



spray solutions, requirements 165 



value as insecticide, experiments 165 



Quercus rubra. See Oak, red. 



Razoumfshya arnericana, infestation of lodgepole pine 154 



Recipes, mushrooms 175 



"Red belt," injury to conifers 154 



"Red rot," injury to lodgepole pine, nature and devel- 

 opment 154 



Redwood — 



use for water pipe staves 155 



value for water pipe, tests 155 



Ring scale fungus, injury to lodgepole pine 154 



Robinia -pseudacacw. See Locust, black. 

 Robin — 



description, habitat, breeding habits, food, etc 171 



food among insects 171 



Oregon, habitat, food habits, etc 171 



regurgitation habits, notes 171 



stomach, presence of ' ' wad " of fibers, note 171 



vegetable food 171 



Robins — 



examination of stomachs, contents 171 



food (with bluebirds) in United States 171 



Oregon, examination of stomachs, contents, etc 171 



Roosevelt, Robert B., statement on destruction of 



cherries by robins 171 



Rooted collybia, mushroom, description and occurrence. . 175 



Root-rot, fruit trees, San Antonio region, note 162 



Roots, injury by disinfectants in sandy soils 169 



Rotation, experiments at Nephi, Utah 157 



Rusk citrange, adaptability to San Antonio region, 



note 162 



Russell, J. L., forest planting in Massachusetts, 1819, 



note 153 



Russula, genus, characters, descriptions of species, etc.. 175 



Rust, injury to lodgepole pine 154 



Rye, growing on sassafras soils of various types, yield, 



etc 159 



Salads, mushroom, preparation 175 



Salicylic acid, preservative for cactus solution, experi- 

 ments 160 



San Antonio — 



experiment farm, crop production on fallow land.. 151 



field station, horticultural experiments 162 



San Pedro bluebird. See Bluebird, western. 



' ' Sand toad, ' ' enemy of wireworm, habitat, etc I 156 



Bulletin. 



2-3 

 2 



2-3 

 4 



1-8 

 3 



4-5 

 4 

 7 



5-7 



22 



58-64 

 25-26 



21 



6 



34-35 



21 



2-19 



7-10 



16-19 



13 



15 



10-15 



8-10, 13-1 



1-31 



18-19 



4 



19 



4 



1-35 



1-45 



19 



5 



22-23 

 22 



19, 29, 33 



61 



14 



1-10 

 1-26 



27 



