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MANUAL

OF

SCIENCE FOR TEACHERS

CONTAINING

ANSWERS TO THE PRACTICAL QUESTIONS
AND PROBLEMS IN THE AUTHOR'S

SCIENTIFIC TEXT-BOOKS

BY

J. DORMAN STEELE, PH.D., F. G. S.

AUTHOR OF THE FOURTEEN-WEEKS SERIES IN NATURAL SCIENCE

REVISED EDITION

TO ACCOMPANY THE POPULAR PHYSICS, POPULAR CHEMISTRY, HY NIC

PHYSIOLOGY, AND NEW DESCRIPTIVE ASTRONOMY

FRANCISCO, CAL.
Civil & Mechanical Engineer.
JOHN S. PRELL

SAN

NEW YORK: CINCINNATI: CHICAGO

AMERICAN BOOK COMPANY

A POPULAR SERIES

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The Publishers can supply (to Teachers only) a Manual containing Answers
to the Questions and Problems in Steele's entire Series.

BARNES HISTORICAL SERIES,

ON THE PLAN OF

STEELE'S FOURTEEN-WEEKS IN

A Brief History of the United States.

A Brief History of France.

THE SCIENCES.

A Brief History of Ancient Peoples.

A Brief History of Medieval and Modern Peoples.
A Brief General History.

A Brief History of Greece.

A Brief History of Rome.

A Popular History of the United States.

Copyright, 1888, by A. S. BARNES & Co.

Add 2
GIFT

PREFACE.

Q152 $$ EDUC

SINCE the publication of the former edition of this Manual, Steele's Physics and Chemistry have been thoroughly revised, and the Hygienic Physiology has been published. The present issue has been prepared to accompany these later editions, and includes complete reference to all the problems and practical questions contained in Steele's Popular Physics, Popular Chemistry, Hygienic Physiology, and New Descriptive Astronomy. Great pains have been taken to revise and compare the problems, which are fully, and, it is thought, accurately solved. The practical questions, as in the former edition of the Manual, are often not answered in full, yet sufficiently so to furnish a key to the more perfect reply. The use of the text-books is presupposed, and the statements merely supplement, or apply the theories therein contained and explained. Upon many points there may be, and often is, a difference of opinion. On these mooted questions only that view which appeared to the author to have preponderance of argument has been advanced, leaving the subject open for the discussion of other theories.

The former edition of the Manual can still be obtained by those teachers who continue to use the earlier editions of the Sciences, although, with a few exceptions, the problems and questions therein answered are incorporated with those which have been added in the present issue.

DECEMBER, 1888.

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