SUBJECT INDEX 



469 



Praon — 



cocoons, fungus growing from, (40) 459. 

 construction of cocoon, (37) 856. 

 Prays— 



citri, notes, (30) 252; (32) 56. 

 oleaellus, notes, (30) 455. 

 Precipitates — 



apparatus for washing, (36) 504. 

 ignition, (27) 713. 

 washing device for, (37) 503. 

 Precipitation — see also Rainfall, Snowfall, elc. 

 and altitude in the Sierra, (26) 27. 

 and halos at Wauseon. Ohio, (32) 810. 

 and run-off, Ishikari River, Japan, (29) 813. 

 at New Orleans, La., (32) 614. 

 at State College, Pa., (35) 507. 

 atmospheric, electricity of, (34) 413. 

 averages for large areas, (26) 27. 

 chart, new, (38) 209 

 charts, preparation, (37) 807. 

 chlorin and sulphur content, (30) 422. 

 daytime and nighttime, (36) 717. 

 effect on — 



drainage water, (26) 619. 

 insects, (37) 355. 

 sugar beets, (26) 738. 

 yield of alfalfa, (37) 717. 

 yield of cereals, (28) 41. 

 factor, seasonal, (39) 511. 

 in British Columbia, (34) 320; (38) 288 

 central Ohio, (40) 117. 

 China, (36) 19. 

 Illinois, (39) 319. 

 1913, (32) 810. 

 north Germany, (36) 208. 

 northern Europe, (31) 316. 

 Russian Turkestan, (31) 812. 

 southeastern Rocky Mountain slopes, (35) 



619. 

 Texas Panhandle, (30) 318. 

 United States, (30) 318, 815. 

 western Kansas, (30) 318. 

 observations, working up, (37) 513. 

 reactions, equilibrium in, (34) 779; (37) 877. 

 relation to — 



run-off and evaporation, (40) 810. 

 stream flow, (29) 121, 812; (35) 116. 

 tree growth, (30) 417, 445. 

 winter wheat yields, (38) 14. 

 seasonal, (40) 616. 

 Precipitin — 



and sensitizin, relationship, (34) 778. 

 antigen, production from bacteria, (38) 483. 

 for differentiating insoluble proteins, (27) 410. 

 reaction — 



diagnostic value, (32) 375. 

 for testing seeds, (28) 204. 

 notes, (27) 680; (34) 579. 

 test, diagnostic value, (26) 283. 

 Precipitins— 



bacterial, notes, (26) 676. 

 notes, (32) 78. 



production, (29) 581; (33) 84. 

 production by the fowl, (39) 388. 

 relation to complement fixation, (30) 478. 

 relation to other immunity reactions, (36) 478. 

 specificity, (26) 482. 

 Prccipitoids, inhibition of precipitation by, (26)175. 

 Precooling plant, description, (35) 391. 

 Pregnancy — 



biological investigations, (27) 174, 577. 

 corpus luteum of, in swine, (40) 663. 

 diagnosis, (27) 577, 881; (28) 777; (29) 377, 408, 

 476, 477, 778; (.30) 276; (31) 179, 180, 278, 279, 

 378, 877; (32) 80, 372, 474, 578, 579, 875; (33) 

 176, 207, 477; (34) 80, 81, 565, 577, 780; (35) 73, 

 179, 879; (36) 381; (37) 478; (38) 181, 581, 684; 

 (39) 284, .583, 680, 886. 

 early, effect on development of animals, (33) 



265. 

 effect on growth, (40) 877. 

 in mares, serodiagnosis, (32) 185. 

 metabolism during, (31) 663. 

 ni^ogen metabolism during, (35) 473. 

 Premifotrypes solani — 



n.g. and n.sp., description, (30) 459. 

 notes, (38) 864. 

 Prenolepis minutula atomus fullawayi n.var., 



description, (27) 264. 

 Prepotency in animals, (32) 861. 



Preptoceras mayfieldi n.sp., description, (34) 264. 

 Preservatives — 



and other chemicals in foods, (33) 66. 

 chemical, detection and use, (26) 609. 

 chemical, notes, (27) 64. 

 detection in— 



butter, (31) 811. 



caviar, (36) 561. 



fats, (31) 508. 



milk, (32) 413; (37) 113. 



milk and its products, (26) 806. 

 effect on — 



barnyard manure, (28) 220. 



butter and margarin, (26) 778. 



cider, (30) 665. 



guaiac test for milk, (20) 712. 



oxygen in water, (26) 418. 



peroxidase reaction of milk, (32) 412. 

 examination, (30) 258. 



food, advantages and disadvantages, (33) 577. 

 food, physiological significance, (30) 364. 

 wood, tests, (32) 841. 

 Preserve jars, sealing, (39) 717. 

 Preserved fruit, "springing" of tins, (40) 208. 



PrGSGFVGS — 



examination, (28) 166; (39) 611. 612. 

 manufacture, (30) 613. 

 preparation, (35) 419 

 preparation and judging, (30) 259. 

 recipes, (32) 560. 

 Preserving— 



and canning, recipes, (36) 113. 

 industry in United States, (31) 67. 

 sirups for, (37) 15. 

 treatise, (32) 253; (38) 114; (39) 614, 716. 



Pressure- 

 change charts, (35) 419. 

 coagulation of albumin by, (32) 417. 

 effect on— 



bacteria, (38) 584. 



hydrogen electrode potential, (36) 503. 

 microorganisms, (32) 416. 

 pipes for water conveyance, (30) 187. 

 vertical, distribution in earth, (35) 581. 



Preventive medicine and hygiene, treatise, (38) 882. 



Price fixings 



and cost of farm products, (39) 687. 

 in England, (40) 487. 



Prickly- 

 ash, notes, (30) 145. 

 pear, see Cacti. . 



Primitive Husk corn, culture experiments, (28) 

 532. 



Primordia of chloroplasts and leucoplasts, (39) 332. 



Primrose— . ,„„ .„„ 



Chinese, formation of pigments in, (27) 633. 

 evening, rusts of, (37) 552. 



Primula — ,. /~,s „«« 



acaulis, inheritance of heterostylism in, (34) 226. 

 culture in Alaska, (29) 743. 

 hybridization experiments, (30) 329. 

 kewensis and its allies, genetic behavior, (35) 



818. 

 sinensis — 



flower pattern in, (34) 731. 

 giant form, (28) 228. 



inheritance in, (34) 822; (36) 729; (38) 822. 

 linkage in, (36) 629. 

 variegation in, (34) 226. 

 Princeton University Farm, notes, (28) 99. 

 Prioninae, catalogue, (30) 458. 

 Prioninae, larvae of, (33) 360. 

 Prionomerus calceatus, notes, (37) 560. 

 Prionoxystus robiniae, notes, (27) 658; (.i») loy, 

 (31) 550; (35) 356; (40) 161, 853. 



californicus, notes, (32) 651; (35) 656. 

 laticollis, notes, (27) 755. 



"Tcericaulis, notes, (26) 856; (28) 351. 

 padi, feeding habits, (28) 553. 



Prisoners, feeding in Germany, (35) 368, W •»•»■ 



Pristaulacus strangaliae n.sp., description, (AS) iw. 



Pristocera armifera, notes, (36) 360. 



Pristomeridia agilis, parasitism, (33) 353. 



Pristomerus— 



hawaiiensis, notes, (29) 253. ,,,^pi:o 



vulnerator, parasitic on gipsy moth, (ii) wi. 



Pristoscelis texanus, notes. (28) 451. 



