"We commend it as a standard book of reference and general information, by those who are so fortunate as to possess it."—Saturday Rambler.
"A body of useful knowledge, indispensable to every man who desires to keep up with the progress of modern discovery and invention."—Boston Courier.
"Must be a most acceptable volume to every one, and greatly facilitate the diffusion of useful knowledge."—Zion's Herald.
"A most valuable and interesting popular work of science and art."—Washington National Intelligencer.
"A rich collection of facts, and one which will be eagerly read. The amount of information contained within its pages is very large."—Evening Gazette.
"Such a key to the progress and facts of scientific discovery will be everywhere welcomed."—New York Commercial Advertiser.
"A most valuable, complete, and comprehensive summary of the existing facts of science; it is replete with interest, and ought to have a place in every well appointed library."—Worcester Spy.
"We commend it to all who wish what has just been found out; to all who would like to discover something themselves, and would be glad to know how: and to all who think they have invented something, and are desirous to know whether any one else has been before hand with them."—Puritan Recorder.
"This is one of the most valuable works which the press has brought forth during the present year. A greater amount of useful and valuable information cannot be obtained from any book of the same size within our knowledge."—Washington Union.
"This important volume will prove one of the most acceptable to our community that has appeared for a long time."—Providence Journal.