198 



EXPEEIMENT STATION KECOKD 



Dental — 



caries, cause, (26) 867. 

 decay, relation to foods, (29) 364. 

 tartar, formation, (20) 160. 

 Denudation, problems of, (40) 118. 

 Deodar — 



distillation products of, (35) 317. 

 fungus disease, notes, (39) 459, 653. 

 needle-cast, notes, (27) 655. 

 witches' brooms on, (32) 346. 

 Department of Agriculture — see aho United States 

 Department of Agriculture, 

 of Finland, report, (37) 295. 

 of Union of South Africa, history and activities, 

 (36) 898. 

 Depressaria — 



atomella, notes, (28) 158. 

 heracliana, destructive to parsnips, (29) 855. 

 heracliana, notes, (35) 853. 

 persicaeella, biology and remedies, (38) 861. 

 Derbidae of Philippines, (38) 461. 

 Dermacentor — 

 albipictus — 



affecting moose, (38) 487. 

 in Minnesota, (38) 566. 

 notes, (27) 356. 

 andersoni, control in Bitter Root Valley, (29) 



658. 

 hunteri n.sp., description, (26) 864. 

 nitens, relation to equine piroplasmosis, (29) 83, 



483. 

 nitens, studies, (35) 58. 



parumapertus marginatus, parasite of, (26) 863. 

 spp., life histories, (29) 861. 

 spp. notes, (27) 866. 

 variabilis, transmission of splenetic fever by, 



(28) 758. 

 venustus — 



as affected by Roentgen rays, (28) 57. 



biology, (29) 359. 



effects following bite of, (29) 585; (30) 182; 



(36) 180. 

 eradication, (30) 162, 760; (32) 853. 

 in California, (38) 484. 

 in Montana, (28) 352; (35) 853; (37) 560; (39) 



265. 

 life history, (26) 64; (31) 176. 

 notes, (29) 652; (32) 448; (33) 553, 862; (35) 



853; (37) 459. 

 relation to paralysis in lambs, (29) 482. 

 studies, (26) 254; (36) 158. 

 Dermanyssus — 



gallinae, see Chicken mites and Poultry mites, 

 sp., transmission of spirochetes by, (32) 279. 

 spp., dissemination by English sparrows, (26) 



246. 

 spp., on rodents, (33) 159. 

 Dermaptera of Plummers Island, Maryland, (40) 



649. 

 Dermatea eucrita, relation to fir withertip, (35) 850. 

 Dermatella prunastri, investigations, (30) 451. 

 Dermatitis — 



granular, studies, (40) 586. 

 in horses, (26) 482; (33) 774; (34) 274. 

 in pigs, (26) 482; (33) 774. 

 pustular, notes, (40) 283. 

 Dermatobia — 



cyaniventris, notes, (38) 362. 

 hominis — 



egg disposal in, (36) 359. 

 life history, (30) 361. 

 notes, (26) 781. 

 parasitic on man, (27) 259. 

 relation in ticks, (40) 62. 

 reproduction and host habits, (34) 358. 

 summary of information, (40) 263. 

 Dermatomycosis of swine, (28) 783. 

 Dermatophilus penetrans, notes, (28) 753. 

 Dermestes — 



cadaverinus, notes, (28) 249. 

 spp., infesting cotton bales, (26) 560. 

 vulpinus in Hawaii, (40) 266. 

 Dermestidae, catalogue, (26) 560. 

 Dermitis, pustular, in horses, (29) 179. 

 Derostenus— 



diastatae, notes, (31) 158. 

 fullowayi n.sp., description, (31) 554. 

 n.spp., descriptions, (30) 661. 

 pallipes n.sp., description, (38) 165. 

 punctiventris n.sp., description, (30) 59. 



Derostenus — Continued. 



saluturis, parasitic on plum leaf-miner, (26) 558. 



sp., studies, (28) 560. 

 Derrengadera, treatment, (40) 583. 

 Deschutes River, Oregon, utilization, (32) 279. 

 Desert — 



habitat, experimental evolution in, (40) 129. 



lakes as source of potash, (40) 128. 



mountains, plant distribution on, (40) 129. 



plants, see Plants, desert. 

 Deserts, precipitation-evaporation factor in, (37) 



625 

 Desiantha nociva, notes, (30) 753; (35) 261. 

 Desiccation- 

 effect on tubercle bacilli, (33) 282. 



of Africa, (37) 807; (40) 717. 



of the earth, (38) 718. 

 Desiccator — 



description, (37) 110. 



electrically heated vacuum, (36) 504. 



vacuum, for soils, (31) 16. 

 Desmia funeralis, see Grape leaf-folder. 

 Desmodium — 



adscendens, culture, (34) 736. 



gyroides as a green manure, (36) 324. 



hirtum, culture experiments, (37) 131. 



hirtum, description and use, (30) 735. 



incanum, culture, (34) 736. 



leiocarpum, analyses, (31) 863. 



spp., notes, (26) 362. 



tortuosum, culture, (27) 419; (30) 335, 632; (32) 

 730. 

 Desmometopa, commensalism in, (34) 359. 

 Desmonycinae of British India, (40) 63. 

 Desmopsis n.g. and n. spp., descriptions, (36) 433. 

 Desmosomus longipes, notes, (37) 359. 

 Desserts, recipes, (39) 769. 

 Deudorix livia, notes, (32) 151. 

 Development — 



Act in Great Britain, (38) 794. 



Fund in England, (30) 793. 

 Dew- 

 ammonia in, (37) 116. 



effect on composition of hay, (26) 235. 



genesis of, (31) 22. 



measurement, (34) 510. 



point, determination, (31) 22. 



point, investigations, (35) 318. 



ponds, accumulation of water in, (30) 118. 



ponds, treatise, (33) 806. 



relation to grape mildew, (28) 152, 448. 



relation to spread of plant diseases, (38) 47. 

 Dewberries — 



breeding experiments, (28) 542; (40) 742. 



culture, (31) 441; (32) 639; (34) 42; (35) 448. 



culture experiments, (28) 436; (38) 41. 



culture in southern Texas, (32) 539. 



phyllody of corolla in, (34) 143. 



sterility in, (36) 444. 



varieties, (27) 241; (28) 542; (37) 243. 

 Dewberry — 



diseases, notes, (37) 52; (39) 652. 



double blossom, investigations, (26) 850. 



rusts, notes and treatment, (29) 50. 

 De-xiidae, new, in South America, (34) 65. 

 Dextrin- 

 commercial, examination, (39) 805. 



determination in— 



food products, (27) 111; (34) 205. 

 sugar products, etc., (31) 412. 

 wheat, (28) 836. 



digestion by bees, (31) 255. 



history of, (26) 106. 



methods of analysis, (27) 205. 



oxidation with bromin, (40) 613. 



production and use, (32) 117. 



products, examination, (34) 11. 



use in food products, (34) 167. 

 Dextrinase, bacterial, preparation. (37) 411. 

 Dextrose — 



absorption by plants, (27) 635. 



absorption, effect on composition of blood, (28) 

 867. 



and picrate solutions, color production in, (39) 

 611. 



content of preserved fruits, (27) 766. 



detection in presence of lactose, (28) 205. 



determination, (34) 611. 



