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NEW MAIL.

Highest Quality $85. Large Tubing, Keyless Cranks, Flush Joints.

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Also MEDIUM-PRICED WHEELS,

$50, $45 and $40.

MEN'S LADIES' AND JUVENILES,

WM. READ & SONS, 107 Washington Street,

BOSTON. ESTABLISHED 1826.

KNOW THYSELF!

This admonition has come down through the centuries with increasing im

pressiveness. In this connection we beg to recommend for every household the three following

publications: The Encyclopedia of Face and Form Reading.

By Mary Olmsted STANTON. Beyond question the most important work on
Physiognomy in existence. Contains 1230 octavo pages and 380 illustrations,
many of them being portraits of great value. One volume, cloth, $4.00;

Half Russia, $5.00.
Heredity, Health and Personal Beauty.

By Jno. V. SHOEMAKER, M. D. Treats of the science of being well groomed.
Contains many valuable receipts useful to the family. 422 pages, octavo.

Price, 2.50, cloth.
The Daughter.

By W. M. Capp, M. D. Presents delicately, information which every mother should be able to impart. 144 pages, octavo. Price $1.00, cloth; 50 cents, paper.

Descriptive Circulars on Application to

THE F. A. DAVIS CO., Publishers,

1914-16 Cherry St., Philadelphia, Pa.

POPULAR SCIENCE MONTHLY.

Prospectus for 1897.

URING the last few years science has been unusually fruitful in important

and striking discoveries. Helium and argon, the electric furnace, and the

X-ray are but a few of the more startling results in the physical sciences. Similarly important if less sensational advances are being made in the fields of medicine and sanitation. Students of society and politics are coming to see the necessity for a scientific study of sociology, if we are to cope successfully with the increasing difficulties of modern civilization. We have always insisted that such a study was the only one which promised any satisfactory solution of social problems, and that many of society's worst evils were due simply to ignorance of elementary scientific principles. It is very gratifying to observe the unmistakable signs of a growing acceptance of this view that have become manifest during recent years. In our issues for 1897 we shall endeavor, as heretofore, to help on this movement by giving to the general public month by month a summary, in simple words, of what is going on in the various fields of scientific research, and of the applications of the principles thus worked out.

Among the features of special interest will be a series of papers by Prof. WILLIAM Z. RIPLEY, on the Racial Geography of Europe, the subject of the last course of Lowell lectures delivered by him. The articles will be freely illustrated. DAVID A. Wells's interesting papers on Taxation will continue, and there will be a series of carefully prepared illustrated articles on science at the universities, which is to include accounts of the leading scientific institutions and societies of the country. Education and child psychology will be given considerable space, and sanitary questions, especially in connection with household economy, will receive attention. Timely single articles may be expected from our usual contributors, among whom may be named

ANDREW D. WHITE,
DAVID A. WELLS,
APPLETON MORGAN,
JAMES SULLY,
FREDERICK STARR,
WILLIAM G. SUMNER,

WILLIAM T. LUSK, M. D.,
GARRETT P. SERVISS,
DAVID STARR JORDAN,
T. C. MENDENHALL,
HERBERT SPENCER,
EDWARD S. MORSE,'

T. MITCHELL PRUDDEN, M.D.
C. HANFORD HENDERSON,
CHARLES SEDGWICK MINOT,
G. T. W. PATRICK,
M. ALLEN STARR,
GEORGE M. STERNBERG.

50 Cents a number.

$5.00 per annum.

D. APPLETON & CO., Publishers, NEW YORK.

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