INDEX OF SUBJECTS. 



977 



Page. 

 Opuntia fraits, personation and 



multiplication of 430 



Orange — 



black spot, notes 644 



scaly bark, treatment, Cal 240 



wlther-tlp, notes, Cal 241 



Oranges — 



acidity in relation to maturity, 



Cal 235 



bright V. russet fruit of 535 



frozen, composition 365, 502 



jelly from, Cal 207 



mautrity in, Cal 235 



navel, bud mutations in 43 



navel, improvement by bud se- 

 lection and top-working 63D 



navel, origin and development — 43 



nematodes affecting 354 



total solids and acidity, N. Dak_ 661 

 Orchard — 



grass, moisture content and 



shrinkage, U.S.D.A 828 



heating devices, tests 747 



inspection. (Sec Nursery in- 

 spection.) 

 Orchards — 



cover crop experiments. N.Mex_ 437 



protection against frost 341 



renovation. Can 341 



Orchestes canus, notes 254 



Orchid leaf spot, notes 442 



Orchids, treatise 741 



Oregon — 



College, notes 97, 199, 296, 497 



Eastern Substation, report 294 



Station, notes 199, 497, 695 



Organic — 



compounds, determination, trea- 

 tise 312 



compounds, humifleation 516 



compounds of soils, eflfect on 



plant growth, Tex 126 



matter, loss in cultivated soils. 516 



matter, oxidation in soils, Tex_ 420 



Organisms, fat containing, culture 763 



Oroyia duhia, biology 251 



Origanum oil, insecticidal value 359 



Ornamental plants, shrubs, or trees. 



(See Plants, Shrubs, and Trees.) 

 Ornithopus spp., hydrocyanic acid 



in 525 



Orthoclase potash, solubility 328 



Orthoptera of Yale-Dominican ex- 

 pedition 854 



Oryzomya n.spp., descriptions 850 



Ostriches, breeding and care 873 



Ottorhynchus sulcatus, notes 65 



Ovarian — 



extract feeding, effect on growth 



and sexual development 766 



tissue, transplanting in chicks_ S70 

 Ovules, abortiveness in relation to 



pod position, N.J 134 



Oxalic acid — 



larvicidal value 350 



secretion by Gicer arietinum 525 



Page. 



Oxalis, genetlcal studies 823 



Oxidase enzyms, notes 711 



Oxidases — 



distribution in plants 32 



rOle in plant respiration 524 



r61e in plant respiration, Md 523 



Oxidation processes in animal or- 

 ganism 663 



Oxygen — 



density, U.S.D.A 414 



determination in waters and 



effluents 410 



Oyster-shell scale — 



as affected by low temperature- 357 

 notes, N.J 158 



Oysters — 



packing, shipping, and sale, Ky_ 761 

 propacation, N.J 180 



Pachybrachys, North American, re- 

 vision 361 



Pachypappa reaumuri, notes 551 



Pachytylus sp., control in Malay 254 



Packinghouse products. (See Ani- 

 mal products.) 



Paddy. (See Rice.) 



Paints, branding, tests, Wyo 668 



Palindia, notes 855 



Palm- 

 kernel cake, analyses 263 



kernel cake for cattle 566 



kernels, composition and nutri- 

 tive value 565 



nut cake as a feeding stuff 298 



nut cake, effect on milk 471, 570 



Pan American — 



Road Congress 390,484 



Scientific Congress 303 



Pancreas — 



ferments of 257 



r61e in digestion and absorption 



of fat 257 



Pancreatic juice, nature and prop- 

 erties 257 



Pfindetnis ribeana, notes 855 



Panicularia occidentalis n.sp., de- 

 scription 336 



Puntala flavescens, food habits 549 



Papaya disease in Barbados 249 



Papayas, culture in Philippines 635 



Paper pulp filter, use in quantita- 

 tive analysis 712 



Papilio demoleus, notes 851 



Para rubber. (See Rubber.) 



Paracalocoria — 



colon, oviposition 255 



scrupeus, notes 752 



Paraleptomastix nbnormis — 



in California 451 



n.sp., description 456 



Paraleurocerus Mcoloripes n.g. and 



n.sp., description 857 



Parasites — 



Intestinal, detection 682 



Intestinal, toxins of 879 



(See also Animal parasites. In- 

 sect parasites, etc.) 



