JOURNAL OF EDUCATION, Boston:

"'Science in Short Chapters' supplies a growing want among a large class of busy people, who have not time to consult scientific treatises. Written in clear and simple style. Very interesting and instructive."

ACADEMY, London, England:

"Mr. Williams has presented these scientific subjects to the popular mind with much clearness and force. It may be read with advantage by those without special scientific training."

RELIGIOUS TELESCOPE, Dayton, Ohio:

"It is historic, scientific, and racy. A book of intense practical thought, which one wishes to read carefully and then read again."

NEW YORK SCHOOL JOURNAL:

"A volume of handy science, not only interesting as an abstract subject, but valuable for its clear expositions of every-day science. Of Professor Williams as an authority upon such subjects, it is unnecessary to comment. He already has a fame as a scientific writer which needs no recommendation."

PALL MALL GAZETTE, London, England:

"Original and of scientific value."

GRAPHIC, London:

"Clear, simple, and profitable."

CANADA BAPTIST, Toronto:

"A rich book at a marvellously low price. The style is sprightly and simple. Every chapter contains something we all want to know."

NEWARK DAILY ADVERTISER, N.J.:

"As an educator this book is worth a year's schooling, and it will go where schools of a high grade cannot penetrate. For such a book twenty-five cents seems a ridiculous sum."

J.W. BASHFORD, Auburndale, Mass.:

"A marvellous book, as fascinating as Dickens, to be consulted as an authority along with Britannica, and even fuller of practical hints than the latter's articles. I do not know how you can print its 300 pages for 25 cents."

AMERICAN, Philadelphia:

"Mr. Williams' work is a practical compendium."

III.