1916] 



INDEX OF SUBJECTS. 



969 



Orchard — Continued. ra>,'o. 

 inspection, (See Nursery in- 

 spection.) 

 Orcliards — 



apple. {See Apple orchards.) 



fertilizer exporiiueiits 4IG 



fertilizer experiments, Oreg 2.'15 



insects affecting, Idaho 355 



irrigation experiments, Oreg o'M 



management 142 



spraying experiments 342, 447 



spraying, piping system for 743 



young, intercropping 342 



Orchcstes manyifcrae n.sp., descrip- 

 tion 3G5 



Orchid diseases, descriptions 055 



Orchids, flowers of 431 



Oregon — 



College and Station, notes. 07, 400, G98 



Hood River Substation, report- 2!tO, 



595 



Umatilla Substation, report 299 



Ornamental plants, shrubs, or trees. 



(See Plants, Shrubs, and Trees.) 

 Ornithodorus coriaceus, life history 



and biting habits 662 



Ornithological collector's handbook _ 355 



Oriiix (jeminnteUa, studies, U.S.D.A- 359 



Orthotomicus n.spp., descriptions 856 



Osage orange waste as a dyestuff, 



U.S.D.A 114 



Osmia spp., bionomics 468 



Osmosis, review of literature 432 



Osmotic pressure in plants 25, 26, 822 



Ostertagia trifurcata in abomasum 



of sheep 78 



Ostrich — - 



feather industry in South Af- 

 rica 774 



investigations, Ariz 569 



Ox warble flies — 



in United States 76 



(Studies 282 



Oxamid, availability of nitrogen ln_ 427 



Oxidase action, mechanism 713 



Oxidases, distribution in plant tis- 

 sues 130 



Oxygen, determination in water 415 



Oyster — 



shell scale, notes 756 



shell scale, notes, Oreg 253 



shell scale, notes, U.S.D.A 256 



shells, availability in relation 



to fineness, Md 631 



Oysters — • 



examination 287, 859 



green color of 26;) 



polluted, purification 763 



relation to typhoid outbreak--- 162 



Pachytijchius mtingonis n.sp., de- 

 scription 3^^ 



Paddy. (See Rice.) 



Paints — 



for roofs 1^^ 



inspection in Wisconsin 471 



Palm — Page. 



disease In Belgian Kongo 550 



kernel oil, physical conatautH 312 



nut cake, acidity 770 



nut cake, rancidity 770 



Palmetto, saw, studies 807 



Palmitic add .salts, solubility 410 



Pamburus, new genus, desirlptlon.- 449 



Pan American Road Congress 583 



Panicum — 



hemitimomum, analyses, Fla 831 



miliaecum of .Tava 4J0 



I'anuUn pinipcrda, notes 254 



PanscopuH spp., notes. Wash 304 



Panzcria riidis, biology 2."3 



Papatasli flies of Malta 57 



Papaya flowers, variation in 449 



I'apayas— 



breeding 314 



breeding experiments, Hawaii 539 



I'aper, detection of faulty sizing ln_ 718 

 Para — 



grass, culture experiments, 



Guam 829 



rubber. (Sec Uxih\>or.) 

 Paragonimus wexteniianii, interme- 

 diate host 384,681 



Parasetigena segregata, biology 253 



Paratiioza cockercUi, notes 658 



Parsley, cold frame disease of, Va. 



Truck 847 



Parsnip webworm, notes 853 



Parsnips, culture experiments, Oreg_ 341 

 Paspalttm — • 



dilalatum as a pasture grass, 



Hawaii 562 



dilatatutn, culture experiments, 



Guam 829 



spp. of .Java 440 



Pasteurization, effect on mold spores, 



U.S.D.A 276 



Pasture plants, root systems of 639 



Pastures — 



fertilizer experiments 31 



in National Forests. U.S.D.A-- 167 



irrigated, management, U.S.I )..\_ 734 



Pavements — ■ 



brick, construction 1^8 



concrete, construction 390 



Paving bricks, tests 390,789 



Pea — 



aphis, green, investigations 401 



aphis, synonymy 250 



blight, treatment. Wis 545 



meal, analyses, N.Y.State 807 



Peach — 



aphis, green, notes. Conn. State 54 



borer, control in West Virginia. 657 



brown rot, notes ^•''1 



buds, winter Injury to 143 



diseases and Insect pest.s In 



Georgia 447 



leaf curl, treatment 457,753 



orchards, care and management- 447 



tree wounds, painting 440 



