328 



EXPERIMENT STATION RECORD 



Laundry— Continued. 



maebinerv, use in disinfection and disinsection, 

 (40)551. 

 Laurel- 

 green, analyses, (26) 05. 

 leaves, evolution of hydrocyanic acid from, (26) 



228. 

 leaves, free hydrocyanic acid in, (27) 635. 

 psyllid, studies, (37) 849. 

 silver leaf disease allecting, (29) 845. 

 Laurentia, North American species, (40) 7(il. 

 Laurie acid salts, solubility, (35) 410. 

 Laurie and myristic acids, separation, (35) 416. 

 Lauron vinosa, life history and habits, (32) 766. 

 Laurus nobilis, oil of, (36) 803. 

 Lava — 



analyses, (30) 899. 

 bricks, efflorescence on, (29) 203. 

 of Hawaii, studies, (33) 418. 

 Lavandula spica, oil of, (36) 803. 

 Lavatera, tests, (37) 143. 

 Lavender, culture in Victoria, (27) 346. 

 Lavender Phoma disease, studies, (36) 851. 

 Lavocat for horses and cattle, (30) 67. 

 Law of minimum- 

 application in irrigation, (32) 481. 

 notes, (27) 721, 823; (28) 420, 518, 722; (30) 135, 

 228, 321, 519, 627; (31) 17, 28, 118, 221, 327; 

 (34) 218. 

 Lawn- 

 grass, Korean, notes, (26) 362. 

 grasses as afiected by soil acidity, (40) 125. 

 grasses, new Sclerotium disease, (39) 753. 

 mixtures, tests, (29) 145; (35) 742. 

 Lawns — 



bibliography, (34) 238. 

 construction and maintenance, (35) 145. 

 eradication of dandelions on, (39) 37. 

 fertilizer experiments, (37) 446. 

 handbook, (27) 41. 

 in sand hills of Nebraska, (35) 835. 

 in the South, juanagement, (26) 299. 

 management, (32) 828. 

 notes, (27) 346. 



preparation and care, (34) 836. 

 starting, (29) 148. 

 Lawsonia alba, studies, (35) 449. 

 Lead — 



arsenate — 



addition of soft soap to, (33) 538. 

 adhesiveness of, (26) 256; (38) 858. 

 analyses, (26) 65, 715, 757; (27) 344, 441, 755, 

 756, 757; (29) 42; (31) 49, 142; (32) 169; (33) 

 47, 735; (34) 436, 639; (36) 39; (37) 243; (38) 

 643; (39) 240. 

 and soap mixtures, soluble arsenic in, (31) 



409. 

 as fungicide for apple scab, (36) 50. 

 as summer spray for apples, (33) 46. 

 basic, preparation and properties, (37) 410. 

 chemistry of, (32) 713. 

 costs and efficiency, (40) 163. 

 decomposition by water, (37) 802. 

 different brands, (39) 348. 

 dihydrogen, (39) 767. 

 dust, use with sulphur, (39) 548. 

 eflect of soap on settling, (26) 354. 

 efiect on apple roots, (39) 40. 

 effect on apples, (33) 46; (40) 639. 

 for boll weevil, (40) 752. 

 fungicidal and insecticidal value, (35) 39. 

 fungicidal value, (27) 153; (31) 151; (33) 237, 



648; (34) 146; (35) 549; (39) 662. 

 injury to stone fruits, ( 37} 848. 

 insecticidal value, (27) 439; (28) 669; (32) 



158, 847; (34) 60, 146, 648; (37) 759. 

 insecticidal value of various forms, (31) 350. 

 lime-sulphur mi.xture, studies, (29) 802. 

 methods of analysis, (27) 496. 

 occurrence in grape products, (27) 243. 

 paste as affected by freezing, (36) 456. 

 poisoning, danger from, (33) 98. 

 poisoning of apples with, (31) 141. 

 powdered, insecticidal value, (30) 456, 840. 

 powdered, use, (29) 862. 

 powdered, use on tobacco, (26) 463. 

 preparation, (26) 539; (40) 801. 

 preparation and properties, (28) 308. 

 preparation and tests, (33) 801. 

 solubUity in mixed sprays, (33) 710. 



Lead— Cont inued . 



arsenate — continued. 



studies, (3C) 313, 501. 



tests, (27) 440; (28) 48; (35) 342; (37) 448 



use against tobacco hornworms, (29) 356; 

 (31) 454; (38) 159. 



use in agriculture, (34) 851. 



use in viticulture (36) 537. 



use with lime sulphur, (39) 261. 



use with other sprays, (38) 268. 



V. calcium arsenate as an insecticide, (33) 

 339, 340. 

 as affected by — 



alkaline natural water, (30) 511. 



various waters, (33) 778. 



water, (31) 512. 

 basic white v. sublimed, as priming for paint, 



(33)91. 

 benzoate, effect on potatoes, (27) 161, 237. 

 boring beetle, (39) 467. 

 chlor arsenate, preparation and properties, (36) 



412. 

 chromate, insecticidal value, (27) 161; (29) 758. 

 chromate, use against caterpillars, (32) 850. 

 detection in water, (34) 410. 

 determination in — 



baking powder, (27) 499; (29) 799, 866; (32) 

 298. 



beer, (26) 409. 



water, (32) 505; (38) 506. 

 effect on germ cells of male rabbits and fowls, 



(32) 861. 

 effect on nitrogen-fixing bacteria, (38) 428. 

 effect on plant growth, (38) 819. 

 foils for packing tea, (33) 66. 

 in orchard soils, (31) 720. 

 in pharmaceutical zinc oxid, (40) 413. 

 metallic, effect on Aspergillus niger, (30) 824. 

 nitrate- 

 effect on growth of corn, (31) 226. 



eflect on sugar beets, (26) 225; (30) 629; 

 (34) 38. 



preparation, (40) 801. 

 oxid, determination in lead arsenate, (27) 496. 

 oxid, eflect on germination of seeds, (29) 528. 

 poisoning— 



eflect on germ cells, (33) 368; (35) 564. 



in waterfowl, (39) 687. 



through water supplies, (30) 418. 

 removal from water, (34) 390. 

 salts, eflect on — 



ammonification and nitrification in soils » 

 (31) 120. 



disease susceptibility in cereals, (29) 844. 



plants, (28) 731. 



wheat, (29) 520; (35) 324. 

 salts, fertilizing value, (30) 627. 

 toxic eflect on plants, (38) 628. 

 Leadwort, notes, (29) 441. 

 Leaf- 

 blade, sheath, and Lnternode, physiological 



unity of, (35) 330. 

 blister mite, notes, (27) 565. 

 bug, dusky, affecting potatoes, (32) 67. 

 bug, dusky, notes, (33) 352. 

 bug, four-lined, see Poecilocapsis lineatus. 

 color, relation to light absorption, (33) 825. 

 crumpler, notes, (26) 856. 

 development, studies, (37) 324. 

 diseases in Jamaica, (39) 849. 

 epidermis, light sensitivity, (37) 222. 

 etiolation due to cold, (36) 330. 

 fall, relation to light and temperature, (27) 221. 

 fall, studies, (32) 826. 

 hairs, chemotactic reaction, (29) 828. 

 miner, serpentine, notes, (32) 753; (33) 256. 

 miner, serpentine, studies, (29) 867. 

 miner, spike-horned, studies, (36) 156. 

 miners, monograph, (34) 653. 

 miners, notes, (28) 159. 

 miners of Hawaii, (30) 660. 

 mold, analyses, (32) 520; (34) 521. 

 mold, fertilizing value, (29) 622. 

 mold for greenhouse crops, (40) 740. 

 mold, formation, (28) 814; (33) 24. 

 pigments, notes, (31) 728. 

 position of compass plants, studies, (28) 228. 

 roller, oblique banded, notes, (28) 864; (35) 853. 

 rollers,notes,(27)161. 

 sewer, notes, (38) 358. 



