INDEX OF SUBJECTS. 



979 



Oleomargarine— Page. 



treatise 176 



viscosity 209 



Oleoresin from western pines 744 



Oligoclase, decomposition by soil bacteria 



and yeast 121 



Olive- 

 fly, remedies 757 



oil, adulteration 505 



oil, production in Spain 238 



oil, production in Tunis 339 



oil, r61e in glycogen formation 763 



Olives — 



culture in Tunis 339, 534 



production in Italy 142 



production in Spain 238 



Olivine, decomposition by soil bacteria and 



yeast 121 



OUa abdominalis, notes, U.S.D. A 754 



Onchocerca gibsoni, notes 182 



Onion- 

 diseases, notes, Fla 747 



maggot, notes 350 



maggot, remedies 757 



maggot, remedies. Wis 849 



scab, notes 539 



smut, treatment, Wis 840 



thrips, notes 350 



Onions- 

 culture, Colo 836 



culture, 111 836 



culture. Wash 740 



culture on muck lands, Mich 533 



irrigation, N.Mex 782 



liming experiments 820 



varieties, U.S.D. A 835 



wild, eradication, Ind 739 



wild, eradication, U.S.D. A 739 



Oniscus ascllus, notes 758 



Ooencyrtus chrysopce n. sp., description 554 



Oophthora semblidis, biology 62 



Oospora scabies. {See Potato scab.) 



Opatrum xquale, notes 757 



Ophiobolus — 



herpotrichus, studies 542 



sp., notes 147 



Ophthalmology for veterinarians 376 



Optus spp., parasitic on fruit flies 456 



Optical-atmospheric disturbance of 1912-13, 



U.S.D.A 615 



Orange— 



die-back, treatment, Fla 749 



fruit scab, notes 539 



leaf blotch, notes 539 



seed, China, agglutinating properties 774 



tree rot, notes 646 



Oranges- 

 asexual reproduction of seeds 533 



effect on composition of urine 761 



hybridization 48 



new, description, U.S.D.A 337 



Orchard — 



bark beetles, studies, Ohio 852 



cover crops, tests, P.R 635 



grass as a forage crop, Okla 829 



grass bacterial disease, description 745 



grass, notes, Mo 830 



Orchard— Continued. Page, 

 inspection. (See Nursery inspection.) 



pests, remedies. Wash 740 



Orchards- 

 apple. (See Apple orchards.) 



in Missouri 636 



in South Australia 836 



insects affecting 848 



irrigation, N.Mex 782 



manuring 636 



spraying experiments. Me 151 



spraying experiments. Mo 335 



(See also Spraying.) 



Orchestes pallicornis, remedies 456 



Orchitis, tuberculous, in a horse 182 



Oregon — 



College, notes 198, 399, 696, 798 



Station, notes 198, 300, 399, 696 



Organic matter- 

 cleavage and putrefaction in spils 313 



decomposition in soils, Colo 818 



effect on nitrification in soils 722, 819 



effect on nitrifying bacteria 223 



in dry-farm soils 318 



Ornamental plants, shrubs, and trees. (Sec 

 Plants, Shrubs, and Trees.) 



Ornithodoros megnini on jack rabbits 176 



Ornithology, Hungarian, bibliography 57 



Orobanche— 



crenata seeds, germination after passage 



through digestive tract 634 



cumana on sunflowers 153 



minor, eradication 532 



OrtMzema alriceps, notes 757 



Orthoclase, decomposition by soil bacteria 



and yeast 121 



Orthoptera, Inheritance and evolution in 58, 272 



Oryctes rhinoceros, notes 58 



Osiers, culture 49, 839 



Osmosis in soils 720 



Ovarian infection in fowls — 



diagnosis, Conn.Storrs 484 



investigations 484 



Oven temperatures for cooking, standardiza- 

 tion 359 



Ovularia palmicola n.sp., description 746 



Ox muscle, lysin content 559 



Ox warble fly — 



genitalia and larvae of 254 



in South Africa 780 



notes, Ohio 98 



studies 85 



OxaUc acid, assimilation by plants 426 



Oxalis violacea, notes 235 



Oxen- 

 pasturing experiments 470 



skin temperature and fattening capacity, 



relation 866 



Oxidases — 



distribution in plant tissues 626 



in potatoes, U.S.D.A 748 



in tobacco plant 204 



of acid tissues 826 



Oxids, metallic, fertilizing value 821 



Oxygen- 

 determination 109 



determination in water 411 



