254 



EXPERIMENT STATION RECOED 



Forests— Continued. 



private, management in New York, (35) 452. 

 public, state v. national control, (29) 491. 

 rain, in Jamaica, (32) 748. 

 regeneration in Austria, (30) 447. 

 regeneration in north Sweden, (31) 537. 

 relation to- 

 atmospheric and soil moisture, (36) 843; 

 (37) 716. 



conservation of snow, (27) 617; (28) 414, 514; 

 (36) 17, 143. 



European war, (38) 643. 



floods, (31) 515; (32) 237. 



ground water, (89) 240. 



hailstorms, (31) 22. 



rainfall, (36) 346; (38) 510. 



run-off and stream tlow, (26) 643. 



soil erosion, (37) 520. 



soil formation, (28) 421. 



soils, (38) 542. 



stream flow (26) 51; (33) 885; (36) 346. 



water supply, (28) 842. 

 reproduction as affected by fires, (27) 348. 

 second-growth, improvement, (39) 246. 

 selection- 

 regulating yield in, (28) 744. 



strip method of felling, (27) 444; (35) 346. 



system, (29) 240; (30) 844. 



system, formula for normal growing stock 

 in, (33) 738. 

 site determination and classification, (37) 450. 

 smelter injury, (29) 851. 

 soil types for, (34) 640. 

 State administration, (40) 688. 

 State, in Pennsylvania, (35) 452. 

 strip thinnings, (26) 51. 

 subdivision of, (33) 442. 

 sun energy in, (30) 45. 

 taxation, (27) 646; (38) 146. 

 thinning experiments, (28) 744. 

 Tintern crown, management, (33) 645. 

 tolerance studies, (40) 152. 

 topographic survey methods, (35) 841. 

 treatise, (28) 544. 

 tropical, timbers of, (39) 245. 

 tropical, utilization, (36) 145. 

 utilization with portable mills, (34) 642. 

 windfall damage in, (34) 640. 

 windfall in, (33) 843. 

 yield ta.x, basis for, (38) 46. 

 yields, determination, (27) 647; (31) 538. 

 Forflcula auricularia— 

 feeding habits, (32) 246. 

 in Rhode Island, (32) 247. 

 life history, (36) 857. 

 life history and remedies, (38) 56. 

 notes, (39) 404; (40) 753. 

 Forget-me-not, culture in Alaska, (29) 743. 

 Forging and smithing, handbook, (36) 287. 

 Forhin — 



analyses, (28) 154. 

 tests, (30) 448. 

 Forleule, outbreak in northern Bohemia, (31) 756. 

 Formaldehyde — 

 analyses, (33) 735. 

 as blood preservative, (29) 676. 

 fly poison, (37) 53. 

 food preservative, (30) 364. 

 milk preservative, (30) 74; (31) 674. 

 oxidation product of chlorophyll, (31) 222. 

 serum preservative, (33) 280. 

 source of carbon for plants, (35) 821. 

 treatment for seed grain, (28) 846. 

 destruction of flies bv, (26) 861. 

 detection, (32) 506. 

 detection in- 

 illuminated green plants, (35) 821. 



milk, (28) 809; (30) 414; (40) 413. 



plant leaves, (29) 308. 

 determination, (26) 510; (30) 115; (31) 109; (35) 



616. 

 determination in fumigants, (31) 414. 

 disinfection with, (26) 174. 

 effect on — 



action of maltase, (28) 504. 



animal organism, (34) 459. 



bacterial toxins, (20) 782. 



formation of botulinus toxins, (30) 479. 



germination of cereals, (29) 151, 346. 



germination of dodder, (27) 28. 



Formaldehyde— Continued, 

 effect on — continued. 



germination of seeds, (26) 131,820. 

 germination of wheat, (26) 846; (28) 242; (30) 



242 837. 

 living plants, (29) 827. 

 plants, (26) 731. 

 potatoes, (30) 539, 540. 

 protein hydrolysis, (38) 201. 

 soil organisms, (31) 27; (38) 420. 

 gas, liberation from water solutions, (33) 12, 111. 

 gas, use against flies, (30) 757. 

 house disinfection with, (32) 683. 

 in Adamkiewicz reaction, (40) 507. 

 in sap of green plants, (29) 132. 

 method of generating, (39) 649. 

 nature and use, (26) 580. 

 oxidation to formic acid, (35) 713. 

 preserved milk for calves, (32) 669. 

 role in plant growth, (28) 38. 

 solution, effect on potatoes, (27) 748. 

 sterilization of soils by, (32) 816. 

 sulphurous acid, detection, (32) 507. 

 synthesis by sunlight, (30) 129. 

 use against— 



bloat in cattle, (33) 389. 

 Fusarium in cereals, (33) 546. 

 mastitis, (37) 277; (38) 286. 

 potato diseases, (26) 547. 

 potato wart disease, (33) 446. 

 wheat stinking smut, (33) 744. 

 use in seed treatment, (39) 851. 

 Formalin, see Formaldehyde. 

 Formalinized blood corpuscles, use in complement 



fixation test, (30) 779. 

 Formamid, assimilation by plants, (26) 32. 

 Formic acid — 



as food preservative, (30) 364. 

 as fruit sirup preservative, (29) 463. 

 content of vinegar, (27) 808; (29) 798. 

 detection, (27) 498; (32) 506, 507. 

 detection in — 



food products, (28) 806; (29) 799. 

 fruit products, (28) 204. 

 meat, (29) 716. 

 sirups, (29) 717. 

 vinegar, (26) 208. 

 determination, (26) 510; (31) 509; (32) 116; (33) 



804. 

 determination in— 



foods (26) 312; (28) 863. 

 preservatives, (32) 299. 

 eflect on plants, (37) 224. 

 in honey, (26) 25; (27) 714; (28) 166. 

 in silage, (28) 608, 609. 

 or formates, determination, (38) 313. 

 toxicity to plants, (39) 224. 

 Formic aldehyde as soil disinfectant, (31) 621. 

 Formica — 



fusca cinerea, injurious to tobacco, (30) 759. 

 montanus, notes. (28) 755. 

 Formicencyrtus thoreauini n.g. and n.sp., de 



scription, (35) 761. 

 Formicidac— 



of Guam, (31) 62. 

 of Italy, (38) 364. 

 of South Africa, (35) 365. 

 studies, (29) 860. 

 type species, (26) 352. 

 Formol. titration, (29) 408. 

 Formyl group, occurrence in lignin, (27) 310. 

 Forsythia — 



suspensa, leaf variation in, (27) 741. 

 viridissima, sclerosis of, (36) 251. 

 Fortunella n.g. and n.spp., descriptions. (32) 838. 

 Fossil ruminant from Rock Creek, Texas, (34) 264. 

 Foul brood- 

 control, (39) 264, 869. 

 control in Kansas, (37) 357. 

 control in Texas, (30) 758. 

 etiology, (27) 563. 

 European, control, (39) 661. 

 European, in South Africa, (40) 648. 

 in Cuba. (27) 364. 

 in South Africa, (40) 648. 

 law in Texas, (34) 4.54, 657; (39) 869. 

 notes, (26) 151, 759; (28) 352, 450, 456; (30) 161, 



759; (31) 553; (32) 853; (37) 255. 

 recognition and treatment, (38) 264. 

 treatment, (38) 263; (39) 869. 



