SUBJECT IXDEX 



581 



hersilochus conotracheli — 

 notes. (27) 864. 

 studies, (35) 857. 

 Thespesia — 



glands of, (39) 431. 

 populnea, fertilizing value, (29) 215. 

 Thevetia nerifolia, notes, (27) 862. 

 Thielavia— 

 basicola — 



as root parasite of watermelon, (33) 852. 

 conidial characters and behavior, (35) 247. 

 description and treatment, (31) 448, 840. 

 host plants, (36) .349. 

 infection experiments, (28) 547. 

 notes, (26> 551, 849; (27) 45, 249; (29) 245, 549, 

 650, 753; (30) 649; (33) 744; (36) 50; (37) 38. 

 on beans, (36) 248. 



relation to sweet pea streak disease, (32) 446. 

 resistance of tobacco to, (31) 448. 

 studies, (35) 547; (36) 845; (37) 155. 

 tobacco resistant to, (36) 349. 

 treatment, (32) 545; (36) 50. 

 temperature relations, (39) 854. 

 Thielaviopsis — 



ethaceticus, notes, (29) 650; (34) 841; (38) 354, 



758. 

 paradoxa — 



notes, (26) 145; (29) 345, 647; (30) 541; (31) 

 844; (36) 541; (37) 452, 652; (38) 350, 758, 

 851; (39) 849; (40) 47, 751. 

 on sugar cane, (40) 157. 

 relation to temperature, (33) 545. 

 sp., note3, (28) 241. 

 Thimbleberry — 



crossing with raspberry, (36) 442. 

 rust, notes, (33) 647. 

 Thiobarbituric acid — 



as precipitant for furfural, (36) 318. 

 as qualitative reagent for ketohexose, (37) 206. 

 with aromatic aldehydes, (36) 313. 

 Thiocarbamid, nitrification rate, (32) 124. 

 Thiophene test for lactic acid, (40) 114. 

 Thioploca ingrica, studies, (28) 826. 

 Thiospirillum jenense and its reaction to light 



stimulus, (35) 431. 

 Thiosulphate — 



determination, (35) 804. 



determination in presence of sulphites, (31) 15. 

 fertilizing value, (29) 521. 

 Thiothris spp., investigations, (28) 728. 

 Thiovulum n.g. and n.sp., studies, (30) 133. 

 Thirst, phvsiological basis, (40) 767. 

 Thistle- 

 butterfly, notes, (32) 651. 

 Canada — 



control, (40) 339, 430. 

 destruction, (30) 236, 639; (34) 736. 

 distribution and destruction, (29) 538. 

 host of Heterodera radicicola, (31) 642. 

 Russian — 



analyses, (28) 464. 

 as forage crop, (38) 634. 

 as silage crop, (38) 669; (39) 134. 

 eradication, (27) 733; (32) 134. 

 water requirement, (32; 127. 

 rust, description, (31) 153. 

 rust, notes, (36) 48. 

 Thistles- 

 analyses, (30) 565. 

 coccinellids affecting, (33) 256. 

 eradication, (26) 538; (39) 744. 

 Thitsi tree and its oleoresin, (38) 247. 

 Thlaspi arvense — 



dissemination by farm animals, (26) 839. 

 notes, (28) 46; (36) 442. 

 Thomas — 



meal, notes, (26) 126. 

 slag, see Phosphatic slag. 

 Thomomys — 



bottae, susceptibility to plague, (26) 59. 

 jacinteus n.sp., description, (33) 152. 

 revision, (34) 449. 

 Thorium — 



content of earth's crust, (34) 619. 

 effect on permeabUitv, (34) 34. 

 effect on plant cells, (27) 826. 

 emanations in soils, (27) 418. 

 in soils of United States, (31) 418. 

 X, effect on plant growth, (29) 131. 

 Thorn skeletonizer in N'ew York, (38) 60. 



Three-days' fever, notes, (37) 460. 

 Threshing- 

 machine — 



fires, cause, (32) 86. 



fires, notes, (32) 386. 



band, description, (29) 87. 

 machines — 



cooperative ownership, (34) 392. 



description. (30) 488. 



dissemination of smut by, (31) 148. 



dust explosions and fires in, (35) 688. 



electrically driven, tests, (31) 188. 



exhaust fans for, (40) 49, 746. 



notes, (30) 89. 



operation, (39) 793. 



steam v. electricity for, (28) 685. 



tests, (27) 485; (30) 892; (34) 891. 

 power for (28) 591; (29) 892; (30) 590. 

 with electricity, (32) 282. 

 Thricolepis inornata, notes, (32) 651. 

 Thriphleps insidiosus, notes, (28) 457. 

 Thripoctenus — 



brui, description, (31) 853. 

 nubilipennis n.sp., description, (35) 756. 

 russelli — 



in England, (32) 348. 



n.g. and n.sp., description, (26) 863. 



notes, (28) 250. 



parasitic on Thysanoptera, (26) 858. 



studies, (27) 262. 

 Thrips- 



affecting oats, (27) 452. 

 attacking French beans, (38) 258. 

 corticis, validity, (34) 550. 

 flava as a carnation pest, (26) 347. 

 injurious— 



in British Guiana, (36) 252. 



to alfalfa, (29) 252. 



to grapes, (28) 354. 



to oats, (31) 351. 

 new species, (26) 553. 

 new species, description, (37) 258. 

 new species, in America, (34) 61. 

 notes, (27) 356, 857; (28) 654; (29) 252; (30) 250, 



658; (31) 155; (32) 56, 753. 

 of British Guiana, (40) 163. 

 of Trinidad, notes, (40) 649. 

 oryzae n.sp., description, (35) 357. 

 outbreak in orchards, (32) 755. 

 pisivora, notes, (32) 848. 

 pollination of beets by, (31) 549. 

 red-banded, studies, (28) 353. 

 relation to nonsetting of fruits and seeds, (34) 



remedies, (27) 357. 



sp. affecting tobacco in Java, (31) 249. 



tabaci, see Onion thrips. 

 Thromboplastin- 

 hemostatic action, (36) 576. 



role of in coagulation of blood, (26) 580. 

 Throscidae of Brazil, (35) 261. 

 Thrushes- 

 economic importance, (31) 349. 



feeding habits, (28) 450; (34) 59. 

 Thrypticus muhlenbergiae n.sp., life history, (30) 



253. 

 Thuarea involuta, notes, (26) 362. 

 Thuja occidentalis, wood structure, (27) 147. 

 Thunder — 



and hail in region of Paris, (36) 208. 



distance heard, (38) 210. 



in Paris region, (36) 719. 



Mountain, devastated condition, (40) 841. 



notes, (32) 810. 

 Thunderbolt beetle, notes, (28) 653. 

 Thunderstorm — 



at Charleston, S. C, (30) 417. 



at IMacon, Ga., (29) 812. 



at Washington, D. C, (29) 812. 



in Trinity Co., California, (38) 511. 

 Thunderst orms— 



effect on milk, (32) 873. 



forecasting, (34) 614; (35) 808. 



in Kansas, (29) 510, 721. 



in United States, (34) 117, 615. 



notes, (32) 24. 



studies, (28) 788. 

 Thurberia thespesioides— 



as host plant of cotton boll weevil, (29) 458; (30) 

 56. 



