974 



EXPERIMENT STATION RECORD. 



Page. 



Oats, yields 332 



Kans 735 



Ocean highs, permanent, U.S.D.A 508 



Octillo, transpiration in 124 



Odonata, Australian, studies 52 



CEcanthus spp., egg-laying habits 759 



CEnothcra, heredity of pigmentation in 327 



twin hybrids in 129 



CEnothcra spp., dimorphism of gametes 524 



QHstrus ovis, injurious to sheep 4C5, 781, 887 



Ohio State University, notes 300, 397, 000, 797 



Station, notes 397, 900 



Oi, destruction, Hawaii 37 



O'idium lactis, notes 82 



spp., wintering over 850 



Oil, determination in seeds 801 



waste, fertilizing value 729 



(See aUo specific kinds.) 



Otis, acidity of, significance 012 



coal-tar. (See Coal-tar oils.) 



edible, effect on metalUc containers, 



U.S.D.A 314 



essential, effect on plants 225 



illuminating, laws of Wyoming 106 



manufacture from citrus fruits 044 



methods of analysis 414 



tar, fungicidal value 055 



vegetable, refraction constants 801 



treatise 801 



volatile, treatise 113 



Oklahoma College, notes 797 



Station, notes 797,900 



Okra, culture in Guam, U.S.D.A 837 



hybridization experiments, N.J 445 



Oleic acid, effect on viruses 283 



Oleomargarine, detection 714 



examination 105 



sale in Peimsylvania 160 



Olive l)Iack scale, parasitism 101 



fly, parasitism 360, 857 



husks, detection in pepper 110 



knot, notes 247 



leaf spot, notes 752 



oil, absorption spectra of 414 



adulteration, U.S.D.A 669,709 



analyses 106, 712 



misbranding, U.S.D.A.... 04,368,669,709 



refraction constant 801 



residue, conservation 575 



Olives, adulteration, U.S.D.A 308, 408, 803 



bark beetles affecting 255 



fertilizer experiments 030 



host of orange thrips, U.S.D.A 057 



insects affecting 151 



misbranding, U.S.D.A 669 



Omiodes accepta, studies, U.S.D.A 665 



Omorgus frumcntarius, notes, U.S.D.A 758 



Onagra biennis, heredity in 129 



Oncliocerca gibsoni, studies 887 



gutturosa n.sp., notes 589 



Onchocerciasis in cattle, studies and bibliog- 

 raphy 289 



Oncideres cingulata, notes, U.S.D.A 559 



spp., studies and bibliography, Okla 559 



Onion seed, germination tests. Conn. State 739 



home production, U.S.D.A 39 



Pag«. 



Onions, fertilizer experiments 630 



Tex 627 



insects affecting 250 



storage experiments 537 



Onobrychis saliva, analyses 272 



Oophlhora scmblidis, notes 857 



Oospora scabies. (See Potato scab.) 



Ophioboliis graminis, studies 44 



Ophthalmic reaction for bovine tuberculosis. 485 



Optus concolor, parasitic on olive fly 360 



Opsonic index as affected by serum injections 583 



in tuberculosis 885 



Opuntia spp., water balance of 219 



Orange diseases, notes 753 



dog, notes 54 



extracts, adulteration and misbrand- 



ing,U.S.D.A 468 



fly, parasitism 465 



knot, causative agent 149 



leaf weevils, notes, P.R 253 



leaves and stems, analyses, Fla 427 



maggot, notes 56, 762 



thrips, notes 656 



studies, U.S.D.A 057 



Oranges, cold storage of 238 



decay in transit, U.S.D.A 746 



fungus disease affecting 456 



new, descriptions, U.S.D.A 540 



notes, Hawaii 337 



pineapple, misbranding, U.S.D.A . . 669 



varieties, P.R 740 



wild, utilization, P.R 740 



Orchard — 



diseases, notes 650 



prevalence in Germany 347 



Russia 347,348 



treatment 39 



Me 538 



grass, analyses, Ohio 437 



culture experiments, Kans 735 



host plant of timothy stem-borer, 



U.S.D.A 57 



notes, Ohio 437 



seed, adulteration and misbrand- 

 ing, U.S.D.A 237 



heating in Indiana, U.S.D.A 418, 466 



inspection. (See Nursery inspection.) 



site, selection, Okla 538 



Orchards — 



apple. (See Apple orchards.) 



cover crops for, Mich 743 



P.R 740 



dry-land, notes, Colo 537 



insects affectmg 39, 650, 757 



Oreg 40 



irrigation in Germany 40 



management 39 



Can 536 



Ohio 39 



Wis 238 



plantmg. Wis 39 



protection against frost 618 



Oreg 742 



U.S.D.A 717,743 



renovation 146 



Ohio 337 



