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 this book will be sent prepaid to any address, on receipt of the price, by the Publishers:
American Book Company
NEW YORK · CINCINNATI · CHICAGO