"A highly instructive and very entertaining work.... The book is well worth reading."--Protector, Baltimore, Oct. 3, 1885. "The book will be sought after and read with peculiar interest."--Baltimore Labor Free Press, Oct. 17, 1885. "Some of them [the proofs] are of sufficient force to demand an answer from the advocates of the popular theory."--Baltimore Episcopal Methodist, October 28, 1885. "Showing considerable smartness both in conception and argument."--Western Christian Advocate, Cincinnati, O., Oct. 21, 1885. "Forcible and striking in the extreme."--Brooklyn Market Journal. Baltimore, Maryland, U. S. A., December 7, 1885. [APPENDIX TO THIRD EDITION.] COPY OF LETTER FROM RICHARD A. PROCTOR, ESQ. 5 Montague Street, Russell Square, London, W.C., 12 Dec., 1885. W. Carpenter, Esq., Baltimore. Dear Sir,--I am obliged to you for the copy of your "One Hundred Proofs that the Earth is not a Globe," and for the evident kindness of your intention in dedicating the work to me. The only further remark it occurs to me to offer is that I call myself rather a student of astronomy than an astronomer. Yours faithfully, RICHARD A. PROCTOR. P.S. Perhaps the pamphlet might more precisely be called "One hundred difficulties for young students of astronomy." [APPENDIX TO FOURTH EDITION.] COPY OF LETTER FROM SPENCER F. BAIRD, ESQ. Smithsonian Institution, Washington, D. C., Jan. 6, 1886. Dear Sir,--A copy of your "One Hundred Proofs that the Earth is not a globe" was duly received, and was deposited in Library of Congress October 8, 1884. [1885] A pressure of much more important work has prevented any attempt at reviewing these hundred proofs:--which however have doubtless been thoroughly investigated by the inquisitive astronomers and geodesists of the last four centuries. Yours very respectfully, SPENCER F. BAIRD, Secretary S. I. Mr. William Carpenter, 71, Chew Street, Baltimore, Md. Copy of a letter from one of the several applicants for the "One Hundred Proofs" for the purpose of reviewing them. The writer is Professor of Mathematics at the High School, Auburn, N. Y., and, in his application for the pamphlet, says: "Am a Yale graduate and a Yale Law School man: took the John A. Porter Prize (literary) ($250) at Yale College."