THE TELEPHONE. An Account of the Phenomena of Electricity, Magnetism, and Sound, as involved in its action, with directions for making a Speaking-Telephone. By Professor A. E. Dolbear of Tufts College. 16mo. Illustrated. Price 50 cents.
"An interesting little book upon this most fascinating subject, which is treated in a very clear and methodical way. First we have a thorough review of the discoveries in electricity, then of magnetism, then of those in the study of sound,—pitch, velocity, timbre, tone, resonance, sympathetic vibrations, etc. From these the telephone is reached, and by them in a measure explained."—Hartford Courant.
A PRACTICAL PROOF-READER'S ADVICE.
HANDBOOK OF PUNCTUATION, and other Typographical Matters. For the use of Printers, Authors, Teachers, and Scholars. By Marshall T. Bigelow, Corrector at the University Press, Cambridge, Mass. 18mo. Cloth. 50 cts.
"It is intended for the use of authors and teachers; while business men who have occasion to print circulars, advertisements, etc., can hardly afford to be without a copy of it for reference."—Schenectady Daily Union.
"A USEFUL LITTLE MANUAL."
HANDBOOK OF LIGHT GYMNASTICS. By Lucy B. Hunt, Instructor in Gymnastics at Smith (Female) College, Northampton, Mass. 50 cents.
"It is designed as a guide to teachers of girls; but it will be found of use, also, to such as wish to practise the exercises at home."—New-York World.
LOOK OUT FOR SQUALLS.
PRACTICAL BOAT-SAILING. By Douglas Frazar. Classic size. $1.00. With numerous diagrams and illustrations.