Established by Edward L. Youmans
APPLETONS'
POPULAR SCIENCE
MONTHLY
EDITED BY
WILLIAM JAY YOUMANS
VOL. LIV
NOVEMBER, 1898, TO APRIL, 1899
NEW YORK
D. APPLETON AND COMPANY
1899
Copyright, 1899,
By D. APPLETON AND COMPANY.
Vol. LIV.Established by Edward L. Youmans.No. 2.
APPLETONS'POPULAR SCIENCEMONTHLY.
DECEMBER, 1898.
EDITED BY WILLIAM JAY YOUMANS.
CONTENTS.
| | | PAGE |
| I. | Wheat-growing Capacity of the United States. By E. Atkinson, | 145 |
| II. | The Racial Geography of Europe. The Jews. By Prof. William Z. Ripley. (Illustrated.), | 163 |
| III. | The Playgrounds of Rural and Suburban Schools. By I. G. Oakley, | 176 |
| IV. | Up the Skeena River. By George A. Dorsey, Ph. D. (Illus.), | 181 |
| V. | Light and Vegetation. By Prof. D. T. Macdougal, | 193 |
| VI. | The Stone Age in Egypt. By J. de Morgan, | 202 |
| VII. | Superstition and Crime. By Prof. E. P. Evans, | 206 |
| VIII. | A Geological Romance. By Prof. J. A. Udden. (Illustrated.), | 222 |
| IX. | The Season of the Year. By Grant Allen, | 230 |
| X. | Brain Weights and Intellectual Capacity. By Joseph Simms, M. D., | 243 |
| XI. | Speleology, or Cave Exploration. By M. E. A. Martel, | 255 |
| XII. | Sketch of Charles Henry Hitchcock. (With Portrait.), | 260 |
| XIII. | Editor's Table: Evolution a ...
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