TROWBRIDGE, S.D.  Cloth, 12mo, 387 pages $1.20 A thoroughly modern work, intended as a class manual of Physics for colleges and advanced preparatory schools.

Hammel’s Observation Blanks in Physics By WILLIAM C.A.  HAMMEL.  Flexible, quarto, 42 pages.  Illustrated 30 cents A pupil’s laboratory manual and notebook for the first term’s work.  Blanks are left in which the pupil writes his observations and the principles illustrated.

Copies of any of these books will be sent, prepaid, to any address on receipt of the price by the Publishers:

American Book Company

  NEW YORK .  CINCINNATI .  CHICAGO

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Laboratory Physics

Hammel’s Observation Blanks in Physics

By WILLIAM C.A.  HAMMEL, Professor of Physics in Maryland State
School, Boards, Quarto, 42 pages.  Illustrated 30 cents

These Observation Blanks are designed for use as a Pupil’s Laboratory Manual and Note Book for the first term’s work in the study of Physics.  They combine in convenient form descriptions and illustrations of the apparatus required for making experiments in Physics, with special reference to the elements of Air, Liquids, and Heat; directions for making the required apparatus from simple inexpensive materials, and for performing the experiments, etc.  The book is supplied with blanks for making drawings of the apparatus and for the pupil to record what he has observed and inferred concerning the experiment and the principle illustrated.

The experiments are carefully selected in the light of experience and arranged in logical order.  The treatment throughout is in accordance with the best laboratory practice of the day.

Hon. W.T.  Harris, U.S.  Commissioner of Education, says of these Blanks: 

“I have seen several attempts to assist the work of pupils engaged in the study of Physics, but I have never seen anything which promises to be of such practical assistance as Hammel’s Observation Blanks.”

Specimen copies of the above book will be sent prepaid to any address, on receipt of the price, by the Publishers:

American Book Company

  NEW YORK .  CINCINNATI .  CHICAGO

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Burnet’s Zooelogy

FOR

HIGH SCHOOLS AND ACADEMIES

BY

  MARGARETTA BURNET
  Teacher of Zooelogy, Woodward High School, Cincinnati, O.

Cloth, 12mo, 216 pages.  Illustrated.  Price, 75 cents

This new text-book on Zooelogy is intended for classes in High Schools, Academies, and other Secondary Schools.  While sufficiently elementary for beginners in the study it is full and comprehensive enough for students pursuing a regular course in the Natural Sciences.  It has been prepared by a practical teacher, and is the direct result of school-room experience, field observation and laboratory practice.