St 3 



Vol. LIV.J Established by Edward L. Youmans. [No. Q. 



APPLETONS' 



POPULAR SCIENCE 



MONTHLY. 



4Tx 



APRIL, 1899. 

 EDITED BY WILLIAM JAY YOUMANS. 



CONTENTS. PABB 



I. The Stuff that Dream! are made of. By Havelock Ellis 721 



II. The Best Methods of Taxation. By the Late Hon. David A. 



Wells. Part 1 736 



III. Mental Defectives and the Social Welfare. By Martin W. Barb, 



M. D. (Illustrated.) 746 



IV. The Wheat Problem again. By Edward Atkinson 759 



V. The Coming of the Catbird. By Spencer Trotter 772 



VI. Guessing, as Influenced by Number Preferences. By F. B. Dresslar. 781 



VII. Concerning Weasels. By William E. Cram. (Illustrated.) 786 



VIII. Care of the Throat and Ear. By W. Scheppegrell, M. D 791 



IX. The Physical Geography of the West Indies. I. The Mammals of 



the Antilles. By Dr. F. L. Oswald 802 



X. Iron in the Living Body. By M. A. Dastre 807 



XL The Malay Language. By Prof. R. Clyde Ford 813 



XII. Life on a South Sea Whaler: By Frank T. Btjllen .. . 818 



XIII. Sketch of Manly Miles. (With Portrait.) 834 



XIV. Editor's Table : Science and Culture.— Survival of the Fittest 842 



XV. Scientific Literature * 845 



XVI. Fragments of Science 854 



XVII. Index to Vol. LIV *. . . 865 



NEW YORK: 

 D. APPLETON AND COMPANY, 



72 FIFTH AVENUE. 



Single Number, 50 Cents. Yearly Subscription, $5.00. 



Copyright, 1899, by D. APPLETON AND COMPANY. 



Entered at the Post Office at New York, and admitted for transmission through the mails ix second-class rates. 



