Vol. XLIV.] Established by Edward L. Youmans. [No. 3. 



POPULAR 'SCIEICE 

 lOITHLY. 



JANUARY, 1894. 



EDITED BY WILLIAM JAY YOUMAJfS. 



CONTENTS. PAOB 



I. The Ethics of Tribal Society. By Prof. E. P. Evans 289 



II. Night Hawks and Whip-poor-wills. By Dr. R. W. Shufeldt. 



'(Illustrated.) 308 



III. Recent Railroad Disasters. By Lafayette C. Loomis 314 



lY, Evolution in Professor Huxley. By St. George Mivaet 319 



V. How the Sea is Sounded. By G. W. Littlehales. (Illustrated.) 334 



VI. Emotions and Infection. By M. Ch. Fere 342 



VII. Uncle Sam's Life Savers. By Frank G. Carpenter. (Illus.). . 346 



VIII. Window Lights and their Value. By Prof. J. L. Greenleaf . . 3.')4 



IX. Speech for Deaf Children. By Lillie Eginton Warren 363 



X. Logical Method in Biology. By Frank Cramer 372 



XL Invention and Industry at the South. By Barton H. Wise. . . . 379 



XII. Legal Preventives of Alcoholism. By M. J. Bergeron 391 



XIII. The Past and Future of Aluminum. By M. J. Fleury 397 



XIV. Elisee Reclus and his Opinions, By Miss Helen Zimmern. 



(With Portrait.) 402 



XV. Correspondence : Immaterial Science. Tamability of Birds 409 



XVI. Editor's Table : Public Opinion. International Arbitration 410 



XVIL Literary Notices 413 



XVIII. Popular Miscellany 422 



XIX. Notes 430 



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