334 



KXPERIMENT STATION RECORD 



Light— Continued. 



lictcnuination of intensity, (29) 408. 

 I'tTect on — 



beet seeds, (29) 332. 



carbon dioxid production in plants, (29) 324. 

 chlorophyll in algae, (26) 431. 



chlorophyll production, (28) 731. 



curing of tobacco, (38) 239. 



crop yields, (30) 135. 



development of sugar beets, (27) 642. 



elimination of oxygen, (28) 801. 



enzyms, (28) 110. 



etiolated leaves, (33) 826. 



flowering of plants, (27) 827. 



formation and germinability of seeds, (29) 

 526. 



germination of seeds, (26) 131, 830, 821; (27) 

 220, 243, 444; (28) 327, 826; (29) 421, 525, 

 828,836; (30) 522, 531; (31) 222, 227, 323; (35) 

 222, 523, 632. 



germination of Sphaeropsidales, (38) 225. 



germination of tobacco, (38) 127. 



growth and development of trees, (32) 144. 



growth of cucumbers, (30) 142. 



growth of elms, (28) 344. 



growth of sugar beets, (28) 825. 



metabolism, (29) 567. 



metabolism in white dogs, (31) 563. 



plant growth, (27) 521; (28) 227; (29) 421, 526; 

 (33) 128; (34) 223; (35) 129. 



quality of oak wood, (27) 542. 



sugar formation in beets, (30) 234. 



toxicity of magnesium nitrate, (38) 224. 



transpiration of leaves, (28) 529; (31) 222. 



transpiration of succulent plants, (26) 430. 



tubercle bacilli, (33) 282. 



woody plant seedlings, (30) 430. 

 extinction in atmosphere in region of the ultra- 

 violet, (32) 810. 

 factors affecting in greenhouses, (29) 741. 

 intensities, measurement, (37) 821. 

 intensity and substratum as related to germina- 

 tion, (33) 826. 

 intensity, determination, (26) 532. 

 leaf injury or loss due to, (35) 243. 

 measurement, (38) 629. 

 measurements in forests, (30) 45. 

 measurements in spruce stands, (26) 745. 

 measuring chemical intensity, (28) 37. 

 precipitation of iron by, (26) 326. 

 precipitation, relation to alkali, (27) 816. 

 rays, effect on protoplasmic streaming, (35) 130. 

 relation to — 



chlorophyll, (31) 127, 222; (33) 29. 



formation of essential oil, (33) 726. 



formation of formaldehyde, (29) 132. 



leaf fall, f27) 221. 



plant growth, (36) 327. 



plant succession, (29) 218. 



powdery mildews, (30) 747; (33) 244. 



tree growth, (36) 242. 

 requirements of germinating seeds, (33) 826. 

 requirements of plants, studies, (27) 221., . 

 role in vegetation, (27) 330. 

 sensitivity of foliar organs, (37) 222. 

 sky, polarization, (38) 812. 

 stimuli, transmission in Avena seedlings, (28) 

 529. 

 Lighting — 



handbook (31) 387. 

 installations for residences, (31) 293. 

 plans for farms, (31) 185. 

 plants, gasohne, notes, (28) 291. 

 systems for country homes, (36) 491. 

 Lightning— 



at Mount Wilson observatory, (31) 615. 

 ball, on Puy de Dome, (36) 419. 

 conductors, notes, (28) 188. 

 conductors, studies (28) 788. 

 crushing of copper tube by, (34) 118. 

 damage near San Francisco, (29) 121. 

 danger of various trees, (27) 444. 

 discharge, phenomena of, (26) 214. 

 effect on coconut palms, (35) 250. 

 flashes, notes, (32) 210. 

 injury to — 



citrus trees, (40) 645. 



cotton and tomato plants, (33) 321. 



grapevines, (40) 645. 



herbaceous plants, (40) 645. 



Lightning — Continued. 



injury to — continued, 

 kale, (38) 149. 



potatoes and cotton, (33) 345. 

 sugar cane, (38) 250. 



protection against, (29) 88; (33) 321; (34) 416; 

 (38) 15. 



relation to forest flres ,(28) 50; (37)' 512. 



rods, eflQcacy, (34) 416. 



rods, notes, (31) 572; (35) 890. 



stroke, peculiar, (27) 414. 



strokes, data on, (34) 510. 

 Ligniera — 



development of fungi, (27) 46. 



isoetisn.sp., description, (40) 249. 



n.spp., descriptions, (31) 145. 

 Lignin — 



formyl and acetyl groups in, (27) 310. 



humiflcation, (38) 26. 



liquor as binder for roads, (33) 688. 

 Lignocellulose — 



and animal assimilation, notes, (29) 65. 



as affected by ozone, (30) 711. 

 Lignoceric acid from rotten oak wood, (36) 502. 

 Lignum nephriticum mexicanum, source of, (33) 



740. 

 Lignum vitae substitutes, (40) 640. 

 Ligula simplicissima affecting waterfowl, (29) 784. 

 Ligustrum vulgare, formation of fattv acids in, (26) 



801. 

 Ligyrus— 



gibbosus, life history, (37) 567. 



rugiceps, see Sugar-cane beetle. 



tumulosus, notes, (36) 753. 

 Lilac — 



borer, notes, (28) 155. 



bud sport on, (39) 244. 



disease, description and treatment, (29) 249. 



leaf roll, description, (30) 849. 



trunk disease, notes, (31) 750. 

 Lilacs — 



as affected by tarring roads, (26) 432. 



culture, (35) 450. 



forcing experiments, (28) 435. 



forcing with radium, (27) 438. 



history and propagation, (35) 345. 

 Lilies — 



culture, (35) 450. 



Easter, aerial bulbs on stems, (38) 446. 



handbook, (26) 47. 



nectar secretion, (37) 033. 



treatise, (29) 341. 

 Lilium croceum, carotinoid content, (31) 803. 

 Lily pollen, longevity, (38) 446. 

 Lily-of-the-valley — 



culture, (26) 239. 



fertilizer experiments, (26) 239. 



forcing experiments, (34) 835. 



fungus disease, (27) 252. 



nematodes affecting, (31) 56. 

 Limacinula — 



caucasica n.sp., description, (36) 245. 



javanica, notes, (28) 241. 

 Limax — 



flavus, notes, (40) 56. 



max-imus, biology and remedies, (40) 55. 

 Limber neck in fowls, (40) 176. 

 Lime — see also Liming. 



absorbed, determination in soils, (30) 215. 



agricultural — 



analyses, (39) 329. 



degree of fineness, (30) 222. 



determining value, (40) 815. 



air-slaked, for alfalfa, (37) 34. 



analyses, (26) 714; (27) 327; (28) 326, 626, 841; 

 (29) 119, 520; (31) 122, 424; (32) 520; (33) 820, 

 821; (34) 426, 726; (35) 123, 631, 728; (36) 123, 

 821; (37) 219, 428, 818; (38) 521; (40) 517. 



analyses and use, (28) 726. 



and limestone, analyses, (39) 121. 



and magnesia requirements of plants, (28) 820. 



and marl, comparison, (40) 321. 



application, (36) 123. 



arsenite, analyses, (26) 65. 



as factor in soil fertility, (40) 300. 



as fertilizer, (32) 126, 127. 



as neutralizer in dairy products, (29) 798. 



as top dressing for pastures, (29) 632. 



barrel act. Federal, (37) 723. 



barrels, standard for, (35) 598. 



