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VOLUMES XXXI-XL. 



529 



Kirkwoodj D., origin of comets, iii, 60 ; 



the asteroids, v, 345. 

 Knowledge, illustrated magazine of 



science, xl, 96. 

 Knowlton, F. H., silicified wood of Ari- 

 zona, vii, 7 7 : problematic organism 



from the Devonian, vii, 202. 

 Koeing, G. A., mazapilite, vii, 501. 

 Kokscharow, N. von, Mineralogie Russ- 



lands, hi, 424; vi, 74; viii, 494. 

 Kost, J., Report (1st) ou Florida State 



Geol. Survey, iv, 72. 

 Krabbe, G., Zur Kenntniss der fixen 



Lichtlage der Laubblatter, viii, 253. 

 Knnz, G. F., mineralogical notes, i, 74; 



iv, 477, 490; vi, 222, 472 ; viii, 72. 

 papers on meteorites, i, 145; ii, 311; 



iii, 58, 228, 494 ; iv, 383, 467 ; vi, 275 ; 



xl, 312. 



Gems and Precious Stones of N. 



America, ix, 521. 



L 



Laboratory, physical, magnetic field in, 

 Willson, ix, 87, 456. 



of Physiological Chemistry, New 

 Haven, Studies from, iii, 511. 



proposed N. England Marine Bio- 

 logical, iii. 512. 



Scientific, bulletin of Denison, iv, 

 71 ; xl, 499. 



Work, Elements of, Earl, xl, 331. 

 Lacroix, A., Les Mineraux des Roches, 



vii, 414. 

 Lagerheim, G., DesmidieaB, i, 478. 

 Lake Marielen, Bonaparte, xl, 95. 



Zug, slide at, iv, 405. 

 Lakes, the great N. American, Scher- 



merhorn, iii, 278; Alpine, iii, 431. 

 Lamic, J.. Plants naturalized in south- 

 west of IVance. i, 315. 

 Lane, A. C, estimation of the optical 



angle in parallel light, ix, 53. 

 Langdon, D. W., Jr., Tertiary of Missis- 

 sippi and Alabama, i, 202; some 

 Florida Miocene, viii, 322; geology of 

 Mon Louis Island, Mobile Bay, xl, 237. 

 Langley, S. P., invisible heat-spectra, i, 1. 

 unrecognized wave-lengths, ii, 83. 

 energy and vision, vi,- 359 , invisi- 

 ' ble solar and lunar spectrum, vi, 397. 

 history of a doctrine, vii, 1. 

 observation of sudden phenomena, 

 viii, 93 : temperature of moon, viii, 42 1 . 

 cheapest form of light, xl, 97. 

 Langlois, A. B., Catalogue des Plantes 



de la Basse Louisiane, iv, 494. 

 Latschinoff, P., Der Meteorit von Nowo- 



Urei, vi, 74. 

 Lava, see Bocks. 



Lavallee, A., Notes biographique sur, ii, 

 326. 



Lawson, A. C, geology of Rainy Lake 

 region, iii, 473. 



Lea, I., Bibliography of, i, 239. 



Lea, M. C, red and purple chloride, 

 bromide and iodide of silver, iii, 349 ; 

 photosalts of silver and latent photo- 

 graphic image, iii, 480; photobromide 

 and photoiodide of silver, iii, 489. 



image transference, iv, 3:5 ; combin- 

 ations of silver chloride with other 

 metallic chlorides, iv, 384. 



allotropic forms of silver, vii, 475. 

 allotropic forms of silver, properties 

 of, viii, 47, 129, 237; ring systems 

 produced on allotropic silver by iodine, 

 viii, 241. 



darkened silver chloride not an oxy- 

 chloride, viii, 356. 



Leaves, see Botany. 



LeBlois, A., origin and development of 

 canals and receptacles for secretions, 

 vi, 76. 



LeConte, J., elevation of the Sierra 

 Nevada, shown by river beds, ii, 167 

 phenomena of binocular vision, iv, 97 

 flora of coast islands of Cal , iv, 457 

 origin of normal faults and of stru& 

 ture of Basin region, viii, 257. 



Lecoyer, J. C, Monographic du Thalic- 

 trum, i, 235. 



Lefftnan, H., examination of water for 

 sanitary and technical purposes, vii, 

 421. 



Leidy, J., mammalian remains of Florida, 

 etc., ix, 321. 



Lendenfeld, R. von. Monograph of Hor- 

 ney Sponges, viii, 417. 



Lens, focal length for different colors, 

 vii,. 227. 



Lesley, J. P., Pennsylvania Geology, i, 

 228. 



Lesquereux, L, "Ward's Flora of the 

 Laramie group, iv, 487 ; fossil plants 

 of Coal-measures, R. L, vii, 229. 

 Obituary notice of, viii, 499. 



Leuckart, R., Bibliotheca Zoologica, v, 

 420. 



Levy, A. M., Les Mineraux des Roches, 

 vii, 414. 



Lewis, E., Jr., Woodham artesian well, 

 vii, 233. 



Lewis, R. C, studies upon glaciation in 

 Great BritaiD, ii, 433 ; terminal mo- 

 raines of England, iv, 402. 

 Obituary notice of, vi, 226. 



Light, action on allotropic silver, Lea, 

 viii, 129 ; chlorine water, xl, 492 ; 

 on phosphorus, xl, 492 ; on silver 

 salts, Lea, iii, 349, 480, 489, iv, 33, 

 384. 

 behavior of metals to, vii, 315. 



