TWENTIETH EDITION, REVISED AND GREATLY ENLARGED.
914 Pages. 820 Illustrations. Handsomely Bound in Cloth.
Price by mail, postpaid, $4.00; Half Morocco, $5.00.
The new matter comprises eighty pages of text in the form of an appendix, including among other subjects
A Complete Article on the X-Ray.
Wireless Telegraphy.Liquefaction of Air.
Acetylene Gas Apparatus.Artificial Spectrum.
And other articles which bring the work fully up to date.
This is a book full of interest and value for teachers, students and others who desire to impart or obtain a practical knowledge of Physics.
THE MOST POPULAR SCIENTIFIC BOOK OF THE DAY.
What the press says of “EXPERIMENTAL SCIENCE.”
