SUBJECT INDEX 



407 



rctiGS t6S — 



canus, notes, (28) 156; (34) 254. 

 fagi, notes, (28) 455; (30) 53. 

 mangiferae n.sp., description, (35) 365. 

 pallicornis, remedies, (31) 456. 

 spp., notes, (30) 357. 

 Orchid- 

 bacterial disease, notes, (37) 839. 

 bulbs, fungicidal action, (27) 224. 

 eorms or tubers, dried, analyses, (29) 463. 

 diseases, descriptions, f26) 450, 851; (35) 655. 

 diseases, notes, (39) 453. 

 fly, see Isosoma orchidearum. 

 leaf spot, notes, (34) 442; (40) 844. 

 weevil, new, in Milwaukee, (38) 155. 

 weevils, notes, (40) 655. 

 Orchidaceae, endotrophic mycorrhiza, (39) 26. 

 Orchids — 



bacterial diseases, (26) 650; (40) 158. 

 breeding, (39) 449. 

 breeding and culture, (33) 143. 

 flowers of, (3.5) 431. 

 fumigation, (40) 352. 

 hybridization experiments, (30) 329. 

 insects affecting, (36) 555; (40) 754. 

 pollination by mosquitoes, (30) 658. 

 soils supporting, reaction, (40) 812. 

 treatise, (27) 41; (34) 741. 

 tropical, breeding from seeds, (26) 828. 

 tuberization and root infestation, (30) 29. 

 Orchilus Cabanis, status, (40) 646. 

 Orchis morio, glycogen content, (27) 133. 

 Orchitis, tuberculous, in a horse, (31) 182. 

 Orcin, factors affecting activity, (28) 609. 

 Orcus chalvbeus, parasitic on — 

 black scale, (26) 556. 

 orange scale, (26) 5.54. 

 Oreamnos montanus, 'host of spotted fever tick, 



(26) 64. 

 Oregma lanigera, notes, (26) 857. 

 Oregon- 

 College, notes, (26) 397, 494; (27) 699, 799; (28) 

 698; (29) 197, 300, 900; (30) 96, 397, 600, 699, 

 900; (31) 198, 399, 696, 798; (32) 95, 397, 696, 

 900; (.33) 100, 400, 600, 796: (34>-97, 199, 296, 

 497; (35) 97, 400, 698; (36) 99. 196, 696; (37) 

 98, 197, 299, 399, 499, 898; (38) 98, 499, 799; 

 (39) 698' (40) 298 799. 

 Eastern Substation, renort, (32) 899; (34) 294. 

 Hood River Branch Station, report, (37) 96. 

 Hood River Substation, report, (35) 299, 595. 

 Southern Experiment Station, report, (30) 442. 

 State Livestock Sanitary Board, report, (37) 



374. 

 Station, John Jacob Astor Branch, report, (39) 



299 

 Station, notes, (26) 300, 397; (27) 699; (29) 98, 

 197, 300; (30) 397, 600, 900; (31) 198, 300, 399, 

 696; (32) 95, 397, 6%; (33) 100, 400, 796; (34) 

 199, 497, 695; (35) 97, 400, 698; (37) 98, 299, 399, 

 499, 898; (38) 98, 499, 799; (39) 698, 900; (40) 

 298 799 

 Station, renort, (32) 899. 

 Station, Southern Oregon Branch, report, (39) 



299. 

 Umatilla Substation, report, (35) 299. 

 Oreoscoptes montanus, fruit eating habits, (27) 254. 

 Organic- 

 acids, see Acids, 

 compounds- 

 antiseptic properties, (39) 412. 

 determination, treatise, (34) 312. 

 effect on action of fertilizers, (26) 224. 

 heat of combustion and solution, (26) 872. 

 humification, (34) 516. 

 insecticidal value, determination, (37) 848. 

 photosjTithesis from inorganic, (40) 426. 

 toxicitv to insect eggs, (38) 858. 

 constituents of soils, (28) 418, 519. 

 constituents of soils, effect on plant growth, (28) 



417. 

 evolution, relation to atmospheric variation, 



(26) 272. 

 extracts, relation to soil "sickness," (28) 520. 

 matter- 

 ashing, (37) 712. 



cleavage and putrefaction in soils, (31) 313. 

 colorimetric determination, (40) 712. 

 complete destruction, (26) 206. 

 decomposition in soils, (31) 818; (38) 117; 

 (40) 213. 



Organic— Continued, 

 matter — continued . 



decomposition, relation to plant nutrition, 



(40) 739. 

 destruction in animal and vegetable ma- 

 terials, (37) 713. 

 determination in soils, (39) 11, 312. 

 determination in water, (37) 714. 

 matter, effect on — 



nitrification, (26) 721; (31) 722, 819. 

 nitrifying bacteria, (31) 223. 

 nitrogen fLxation by Azotobacter, (33) 823. 

 nitrogenous compounds, (27) 626; (33) 326. 

 reaction of iron salts, (28) 410. 

 reserves of soil nitrogen, (40) 122. 

 soil acidity, (37) 718. 

 soil moisture, (40) 811. 

 soU temperature, (29) 619. 

 solubility of inorganic soil constituents (37) 

 422. 

 matter for maintenance of soil fertility, (39) 725, 



815. 

 matter in dry-farm soils, (31) 318. 

 matter in soils — see also Soils, organic matter, 

 constituents of, (27j 500. 

 decomposition, (26) 321, 616. 

 effect on plant growth, (34) 126. 

 of South Africa, (26) 420. 

 relation to microorganisms, (29) 315. 

 matter — 



increasing in soils, (29) 540. 



loss from soils, (28) 217. 



loss in cultivated soUs, (3.3) 121, 809; (34) 516. 



loss in green manuring, (36) 324; (38) 622; 



(39) 816. 

 method for rapid destruction, (39) 714. 

 oxidation in soUs, (34) 420. 

 role in soils, (36; 197. 

 sampling device for, (37) 711. 

 showers of, (37) 808. 

 vegetable, humification, (36) 115. 

 phosphoric acid compound of wheat bran, (28) 



17. 

 products, utilization by plants, (36) 225. 

 Organisms— 8fe also Bacteria arid Microorganisms, 

 chemical functions, (28) 201. 

 environic reactions of, (30) 223. 

 fat containing, cultivation, (34) 763. 

 homozygotic, from heterozygotes, (27) 870. 

 living, isolation, (36) 275. 

 living, thermodynamic muscular bioenergy, 



(28; 168. 

 reproduction in, (27) 869. 

 Orgjia dubia, biologj', (34; 251. 

 Orgyia leucostigma, notes, (27) 861. 

 Oria musculosa, life history and remedies, (33) 859. 

 Oribatoidea, synopsis, (37) 858. 

 Oriental- 

 peach moth, see Peach moth; oriental, 

 sore, monograph, (39) 683. 

 sore, transmission, (32) 780. 

 Orientation in ants, etc., treatise, (33) 563. 

 Orientation of small objects in paraflSn, (38) 497. 

 Origanum — 



oU, insecticidal value, (34) 359. 

 vulgare albiflorum, tea from, (33) 661. 

 Origin of species — 



bibliography, (26) 470; (33) 168. 

 observations, (26) 728. 

 Oriole, Bullock — 



destructive to codling moth, (27) 559. 

 destructive to locusts, (28) 351. 

 Ormyrus, n.sp., description, (36) 557. 

 Ornamentals— sfe also Plants, Shrubs, Trees, etc. 



culture in western Nebraska, (29) 546. 

 Ornithin, detection in plants, (37) 201. 

 Ornithodoros— 



coriaceus, life history and biting habits, (35) 



662. 

 megnini — 



in South Africa, (39) 81. 



life history and habits, (37) 856. 



notes, (27) 865; (28) 357; (29) 476; (37) 255; 



(40; 6.56, 682. 

 on jack rabbits, (31) 176. 

 moubata — 



nymphs, infection by, (26) 460. 

 resistance to sheep dips, (28) 481. 

 transmission of spirochetes by, (30) 578. 

 transmission of trypanosomes by, (30) 853. 

 rostratus n.sp., description, (27; 361. 



