SCIENCE 



[-co... 



Ladd, George Trumbull, C. E. Seashore, 242. 

 Lahee, F. H., Use of the Terms "Erosion," 



' ' Denudation, " " Corrasion ' ' and ' ' Corro- 

 sion, ' ' 13. 

 Lampland, C. O., H. N. Eussell, V. M. Sliphek, 



The Aurora, 183. 

 Land Utilization, 375. 



Lane Medical Lectures of Stanford Univ., 460. 

 Langmttie, I., Types of Valence, 59. 

 Latitude and Vertebra, D. S. Jokdak, 490. 

 Lawrence 's "Warbler, J. L. Howe, 302. 

 Lee, H. a., and M. G. Medalla, Leaf Stripe 



Disease of Sugar Cane in the Philippines, 274. 

 Lees, J. H., Iowa Acad, of Sei., 306. 

 Lewis, F. T., Choulant's History and Bibli- 

 ography of Anatomic Illustrations, 379. 

 Lewis, M. R., and L. D. Felton, Connective 



Tissue from Chick Embryos, 636. 

 Lewis, W. L., John Harper Long, 48. 

 Liesegang's Eings, Hugh McGuigan, 78; S. C. 



BRADrORD, 463. 

 Life in Other Worlds, W. D. Matthew, 239. 

 LiNDLET, J. G., Aurora in Latitude 27° N., 14. 

 Linkage in Poultry, J. B. S. Haldane, 663. 

 Linked Genes in Eabbits, W. E. Castle, (534. 

 Little, H. P., Geology as a Profession, 619. 

 LiviNGSTOisr, B. E., Toronto Meeting of the Amer. 



Assoc, 597, 623. 

 LoEB, J., Quantitative Basis of the Polar Charac- 

 ter of Eegeneration in Bryophyllum, 521. 

 Lon"G, J. A., Microscopic Sections, 330. 

 Long, John Harper, W. Lee Lewis, 48. 

 Loreutz, Professor, Lectures, 572. 

 Lovelace, B. F., Chemistry in the U. S., 139. 

 MacCallum, G. a., Epidemic Pneumonia in 



Eeptiles, 279. 

 McClendon, J. P., Vitamine Food-tablets and 



the Food Supply, 409; and A. C. Heijrt, Soil 



Fertility and Vitamine Contents of Grain, 469. 

 McClung, C. E., Zoological Keseareh, 617. 

 McGuLLOCH, L.,Bacterial Disease of Gladiolus, 116 

 MacCukdt, G. G., Fossil Man from Ehodesia, 577. 

 McGuiGAN, H., Liesegang's Eings, 78. 

 McGuiEE, S., Keen's Surgery, 332. 

 MacLeod, J. J. E., Physiology and Biochemistry 



in Medicine, J. C. Atjb, 577. 

 Magnetic Susceptibilities, S. E. Williams, 339. 

 Magneto-optical Effect, E. Thojmson, 84. 

 Man, Nature of, G. J. Ketser, 205. 

 Mauge in White Eats, A. H. Smith, 378. 

 Manns, T. F., and J. F. Adams, Fungi Internal 



of Seed Corn, 385. 

 Mapping the United States, 165. 

 Marchand, W., Megarhyssa, 607. 

 Mastodon, in America, H. F. Osborn, 108 ; Temple 



Hill, S. C. Bishop, 170; Prehistoric Engraving 



of, J. L. B. Taylor, 357. 

 Mathematical Eequirements, 295; Gift, G. A. 



Miller, 456; See. Amer., R. G. D. Eichabdson, 



584. 

 Mathematics, in Spanish Speaking Countries, 



G. A. Miller, 154; Pure, G. A. Miller, 300. 

 Matthew, W. D., Cannonball Lance Formation, 



27; Life in Other Worlds, 239. 

 Maury, C. J., The Rediscovery and Validity of 



Area litliodamus So^verby, 516. 

 Mayor, J. W., Elimination of the X-ehromosome 



by X-rays, 277. 



Medalla, M. G., and H. A. Lee, Leaf Stripe 

 Disease of Sugar Cane, 274. 



Medicine, Spirit of Investigation in, L. G. EowN- 

 TREE, 179. 



Mehl, M. G., Photographing Fossils, 358. 



Meisinger, C. L., True Mean Temperature, 276. 



Mellon Institute, Director of the, 375. 



Mendelian or Non-Mendelian, G. A. Shull, 213. 



Mendenhall, T. C, Hermann von Helmlioltz, 163. 



Mental Defectives in England, 403. 



Merriam, J. C, and C. Stock, Pleistocene Verte- 

 brates in an Asphalt Deposit in California, 566. 



Metabolism Energj', Law of Surface Area in, 

 J. E. MuELiN, 196. 



Meteorologische Zeitschrift, O. Klotz, 663. 



Meteorology and Climatology, Notes on, C. Le E. 

 Meisinger, 276. 



Metric System, in Japan, Howard Richards, 23; 

 English Pronunciation for the, T. L. Bolton, 

 275; and the National Acad, of Sci., C. D. 

 Walcott, 628. 



Miami Aquarium Association, Laboratory of, 430. 



Micro-manipulation Apparatus, E. Chambers, 

 411; Injection Apparatus, R. Chambers, 552. 



Microscopic Sections, Protecting from Injury, 

 J. A. Long, 330. 



Microscopy, Dark-field, Special Oil-immersion Ob- 

 jectives, S. H. Gage, 567. 



Miller, G. A., Mathematics in Spanish Speaking 

 Countries, 154 ; Definition of Pure Mathe- 

 matics, 300; Mathematical Gift, 456. 



Millikan, R. a.. The Significance of Radium, 1. 



Molding Sand Research, 570. 



Moodie, R. L., Bacteria in the American Permian, 

 194; Stensio on Triassie Fishes from Spitz- 

 bergen, 578 ; Advances in Paleopathology, 664. 



Morse, E., Living Gasteropods of New England, 

 P. Bartsch, 379. 



Mortality Statistics for 1920, 429. 



Mulford Biological Expedition, 148, 512. 



Municipal Observatories, N. M. Fenneman, 630. 



MuRLiN, J. R., Energy Metabolism, 196. 



Mycology, Bureau of, 242. 



Myers, M. J., and P. L. Hunt, Experiments oa 

 Cardiac and Respiratory Sounds, 359. 



National Temperament in Scientific Investiga- 

 tions, J. W. Clawson, 53; E. D. C.^-Rmichael, 

 54. 



Natural Selection and Electrolysis, C. Barus, 53. 



Naturalists, Amer. Soc. of, H. F. Osbgen, 576; 

 Toronto Meeting, 460. 



Nature, Order of, R. D. Carmichael, 631. 



Nichols, E. L., Chemical Laboratory of Cornell 

 Universitj-, 651. 



Nichols, Dr. E. F., and the Presidency of the 

 Massachusetts Institute of Technology, 543. 



Nitrogen, Fi.^ed, Production of, 87. 



NoRRis, H. W., Sharks, 465, 630. 



North, Carolina Acad, of Sei., C. S. Brimley, 80; 

 Pacific Ocean, Map of the, 511. 



Obeely, E. R., Abstracts of Articles, 491. 

 Odell, A. F., Sidewalk Mirages, 357. 

 Ohshima, H., The Sea-urchin, 578. 

 Ohio Acad, of Sci., E. L. Rice, 281. 

 Olenellus Fauna, S. J. Schoheld, 666. 

 Olsen, C, Hydrogen Ions in the Soil, 539. 



