SCIENCE. 



Knowlton, F. H., Au American Amber Producing 



Tree, .582 

 Koch Institute, 803 

 Knmmel, Chas. H., A New Solution of the Geodetic 



Problem, 453 



L., W., De Saint Louis a Tripoli par le Lac Tcbad., 



P. L. Monteil, 100 

 Ladd, G. T., Direct Control of Retinal Light, 121; 



Consciousness and Evolution, 123 

 Ladd, Geo. T., Note on Certain Undesoribed Clay 



Occurrences in Missouri, 691 

 Lakes, a short History of the Great, 800 ; in the 



Sahara near Timbuktu, 859 

 Lajib, D. S., Report of the Eighth Annual Meeting 



of American Anatomists, 73 

 Landauer, John, Spectrum Analysis, C. E. M., 785 

 Lane, Alfred C, Possible Depth of Mining and Bor- 

 ing, 53 

 Lang, Arnold, A Text-book of Comparative Anatomy, 



W. H. Ball, 847 

 Langenbeck, Karl, The Chemistry of Pottery, Fkank 



H. Thorp, 567 

 Langley, S. p., a. Gbaham Bell, A Successful 



Trial of the Aerodrome, 753 

 Langley, S. P., More Recent Observations in the 



lufra-Red Spectrum, 640 

 Lasswitz Kurd, Nature and the Individual Mind, 



603 

 Laweekce, Ralph R., The Rontgen Rays. 357, 



409 

 Lawson, Andrew C, The Eruptive Sequence, W. 



C. Brijgger, 635 

 Lea^ M. Carey, The Presence of Rontgen Rays in 



Sunlight, 674 ; The Color Relations of Atoms, 



Ions and Molecules, 816 

 Le Bon, G., On Dark Light, 323 

 Le Conte, Joseph, From Animal to Man, 603 

 Le Conte Prize of the Paris Academy, 64 

 Lee, Feedeeic S., The American Physiological 



Societv, 109 

 Leeds, A. R., Bacteria of Milk Sugar, 820 

 Lesley, J. P., ASirmmary Description of the Geology 



of Pennsylvania, John J. Stevenson, 876 

 Leverett, Frank, Ice Lobes,. 54; Loess of Western 



Illinois and Southeastern Iowa, 54 

 Levison, W. G., X-Ray Photographs, 787 

 Liebig's Condenser, 321 

 Lillie, F. R., Regeneration of Stentor, 59 

 Linck, Gottlob, Grundriss der Krystallographie, W. 



S. B., 903 

 Lindenkohl, a.. Notes on the Density and Tem- 

 perature of the Waters of the Gulf of Mexico and 



the Gulf Stream, 271 

 Lindsay, B., Introduction to the Studj' of Zoology, 



W. M. Rankin. 

 Line Drawings of Blue Print, L. H. Bailey, 67 

 Linguistics, South American, 699 

 Linna;an Society, Annual Lectures of, 165 

 Lippmann, Edmund 0. von. Die Chemie der Zucker- 



arten, Ferdinand G. Wiechmann, 369 

 Liqnification of Air at Low Temperatures, 339 

 Littlehales, G. W. Guide d'oct-anographie pratique, 



J. Thoulet, 246 

 Livi, Ridolfo, Antropometria Militare, Feanz Boas, 



929 

 Locke, F. S., Action of Ether on Contracture and on 



Positive Cathodic Polarization of Voluntary Mus- 

 cle, 117 



Logic, and the Retinal Image, W. K. Beooks, 443 ; 

 ' That Great Lavr of, ' J. McKeen Cattell, 814 



Longevity, human, 556 



Loomis, E. H., Freezing Points of Dilute Aqueous 

 Solutions, 177 



Loudon, W. J. and J. C. McLennan, A Laboratory 

 Course on Experimental Physics, 103 



Lucas, F. A., The Structure and Life of Birds, F. 

 W. Headlej', 28; Biological Society of Washing- 

 ton, 34, 139, 331, 349, 417, 486, 603, 677, 713, 

 821, 878, 934; Does the Private Collector make the 

 Best Museum Administrator ? 289; Instinct of 

 Pecking, 409; Museum Methods, Tlie Exhibition ■ 

 of Fossil Vertebrates, 573 



Luquer, L. McL, Accession of Interesting Minerals, 

 373 



Lusk, G., Phloridzin Diabetes, 111 



Lycopods, The Development of Exogenous Structure 

 in the Paleozoic, A Snmmary of the Researches of 

 Williamson and Renault, David White, 754 



Lydekker, R., A Handbook of the British Mammalia, 

 C. H. M., 325 



M., Certitudes and Illusions, 513, 631;Prof. Bigelow's 

 Solar Magnetic Work, 866 



M., C. E., Spectrum Analysis, John Landauer, 785 



M., C. H., Hunting in many Lands, 346; A Handbook 

 of the British Mammalia, R. Lydekker, 325; 

 A Review of the Weasels of Eastern North 

 America, 535; The Polar Hares of Eastern 

 North America, Samuel N. Rhoads, 564; North 

 American Birds, H. Nehrling, 565; Book of Ante- 

 lopes, P. L. Sclater and Oldfield lliomas, 566; 

 American Polar Hares, A Reply to Mr. Rhoads, 

 . 845; Our Native Birds of Song and Beauty, H. 

 Nehrling, 932 



M. M., Necessary and Sufficient Tests of Truth, 517 



Mabery, C. F., Petroleums, 138; Ohio and Canadian 

 Sulphur Petroleums, 73 



McCORMiCK, J. H., Anthropological Society of Wash- 

 ington, 531, 642 



MacDonald, Arthur, Psycho-Neural Measurements, 

 120, 642 



MacDougal, D. T., The Influence of Carbon Diox- 

 ide on the Protoplasm of Living Plant Cells, 689 



Macfaelane, Alexander, Quaternions, 99 



McGee, W J, Expedition to Seriland, 493; Third Re- 

 port of the Board of Managers of the N. Y. State 

 Colonization Society, O. F. Cook, 673; Two 

 Erosion Epochs — Another Suggestion, 796 



McGee, W J, Geologic JIaps of State of N. Y., 418 



Mach on the X-Rays, 602 



Mcllhiney, P. C, Cassel-Hinman Gold and Bromin 

 Process, 489 



McLellan, James A., and John Dewey, The Psychol- 

 ogy of Number, H. B. Fine. 134" 



MacMillan, Conway, Current Problems in Plant 

 Morphology, 346; Tlie Disai^pearance of Sham 

 Biology from America, 634 



McMuETEiE, Wm., N. Y. Section of the American 

 Chemical Society, 820 



Madagascar, French Expedition to, 133 



Mammoth Bed at Morea, Pa., Edwaed H. Wil- 

 liams, JE., 783 



Man from Galley Hill, 94 



Map, of the German Empire, 61 ; Recent Sheets of Our 

 National, 800 



Maroon, .Jules. Life, Letters and Works of Louis 

 Agassiz, 745 



