976 



EXPERIMENT STATION EECOED. 



Oklahoma — Pag'J- 



College, notes 99, 700 



Station, notes 99 



Okra Verticillium wilt, studies 244 



Oleomargarin, use of fish oil in 363 



Olethreutes hebcsana, studies, 



U.S.D.A 255 



Olive — 



blooms, toxic action of sul- 

 phurous anhydrid on 447 



diseases, studies 524 



fly parasites in Eritrea 658 



oil, production in Spain 539 



Olives — 



floral biology and pathology of_ 524 



production in Spain 539 



propagation 540 



Onchocerca glhsoni, notes 154 



Oncideres putator, studies, U.S.D.A. 63 

 Onion — 



maggot, life history and reme- 

 dies 357 



maggot, remedies. Wis 351 



seed, production. Can 226 



smut, investigations. Wis 344 



smut, treatment. Mass 245 



Onions — • 



culture experiments, N.Mex 43 



culture, treatise 837 



fertilizer experiments, N.Mex 43 



mulching v. clean culture, Mont- 534 



ridge v. level culture, Mont-- 535 



varieties, U.S.D.A 735 



Onohrychis spp., analyses 466 



Ononis spp., analyses -: 466 



Oospora scabies. (See Potato scab.) 



Opsonins of normal serums 178 



Opuntia spp., descriptions 231 



Orange — 



die-back, studies, Fla 55 



juice, preparation, U.S.D.A 316 



mal di gomma, studies 550 



Oranges — 



acidity of 441 



and lemons, hybrid between — 441 



and pomelos, hybrid between. _ 441 



blood, in Caltagirone 540 



cause of rotting in 150 



katydids affecting, U.S.D.A— 451 

 navel, relation of washing to 



decay in, U.S.D.A 737 



stocks for 736 



Orchard — 



grass, culture experiments, 



Wash 33 



heaters, tests. Can 237 



inspection. (See Nursery in- 

 spection.) 



soils, dynamite for, Pa 239 



Orchards — 



apple. (See Apple orchards.) 



fertilizer experiments. Mo 236 



fertilizer experiments, Pa 239 



insects affecting 850 



laws for protection in Michigan 438 



mulching v. clean culture, Pa ' 239 



Orchards — Continued. Page, 



mulching v. clean culture, Wash 43 



rejuvenating, Iowa 240 



renewal. Wash 97 



smudging experiments 440 



spraying, Can 735 



spraying, Wash 47, 98 



spraying experiments. Mo 



spraying experiments, N.H 



survey in Utah 



surveys in West Virginia, W.Va 



45 

 40 

 638 

 140, 

 839 

 238 

 143 



859 

 563 



661 

 168 



51 



young, culture experiments. Pa 



Orchids, breeding and culture 



Oregon — 



College, notes 100, 400, 600, 796 



Station, notes 100, 400, 796 



Organic matter — 



effect on nitrogen fixation by 



Azotobacter 823 



effect on nitrogenous compounds 326 



loss in cultivated soils 121, 809 



Oria musculosa, life history and 



remedies 



Orientation in ants, etc., treatise 



Origanum vulgare albiflorum, tea 



from 



Origin of species, bibliography 



Ornamental plants, shrubs, or trees. 

 (See Plants, Shrubs, and Trees.) 



Orohanche minor, studies 



Orthotyhis flavosparsus, relation to 



fire blight 744 



Oryctes rhinoceros, notes 154 



Oryza n.spp., descriptions 429 



Oscinis frit, notes 554, 057 



Osmia felti, notes 253 



Osmotic pressure — 



in desert plants 628 



relation to stomata regulation- 628 



Ostrich wireworm, life history 384 



Ostriches, chick fever in ^ 384 



Otacariasis in mountain sheep, de- 

 scription 680 



Otiorhynchus — 



(CrypMphorus) ligusticij studies 657 



tauriciis, notes 652 



Otthia arnica, notes 545 



Ovary, resting, in hen, effect of 



pituitary extract on 472 



Oviduct — 



effects of ligation, section, or re- 

 moval. Me 



in hen, abnormality of 



Ovulation as affected by corpus 



luteum, Me 



Ox warble flj' — 



in Canada 



life history 



mature larva in back of horse — 



notes 554, 878 



Oxalls spp. on corn in Barbados 445 



Oxen — 



degeneration in teeth of 270 



maintenance ration 870 



working, dipping 384 



96 

 471 



96 



775 

 656 

 554 



