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* I shall straight conduct you to a hill-side, laborious indeed at the first as-
DISTRICT OF MASSACHUSETTS, TO WIT.
District Clerk's Office. BE IT REMEMBERED, That on the fifteenth day of February, A. D. 1823, and in the forty-seventh year of the independence of the United States of America, J. H. Wilkins, of the said district, has deposited in this office the title of a book, the right whereof hè claims as author, in the words following, to wit:
“Elements of Astronomy, illustrated with plates, for the use of schools and academies; with questions. By John H. Wilkins, A. M. _“We shall lead you to a hill-side, laborious indeed in the first ascent; but else so smooth, so green, so full of goodly prospects, that the harp of Orpheus were not more charming."
Milton. In conformity to the act of the Congress of the United States, entitled "An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies, during the times therein mentioned ;” and also to an act, entitled An act supplementary to an act, entitled An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies, during the times therein mentioned, and extending the benefits thereof to the art of designing, engraving, and etching historical and other prints."
JOHN W. DAVIS, Clerk of the District of Massachusetts.
o 1-2-41. HET J.
MR. WILKINS' elementary work on astronomy appears to us to be
With respect, sir,
Boston, 14 June, 1822.
WILKINS' Elements of Astronomy, by presenting in a concise, but perspicuous and familiar manner, the descriptive and physical branches of the science, and rejecting what is merely mechanical, exhibits
to the student all that is most valuable and interesting to the youthful mind in this sublime department of human knowledge.
WALTER R. JOHNSON,
Principal of the Academy, Germantown, Germantowon, (Penn.) 5th June, 1823.
Having examined the work above described, I unite in opinion with Walter R. Johnson concerning its merits.
ROBERTS VAUX. Philadelphia, 6th Mo. 11, 1823.
Messrs. Cummings, Hilliard, & Co.
Having been partially engaged in giving instruction to youth, for the last fifteen years, it has been necessary for me to examine all the treatises on education which came within my reach. Among other treatises examined, there have been several on Astronomy. Of these, the “ Elements of Astronomy, by John H. WILKINS, A. M.” recently published by you, is, in my opinion, decidedly the best. I have accordingly introduced it into my Seminary, and find it well calculated to answer its intended purpose, by plain illustrations to lead young persons to a knowledge of that most interesting science..
J. L. BLAKE,
Principal of Lit. Sem. for Young Ladies. Boston, Jan. 5, 1825.
DIRECTIONS FOR PLACING THE PLATES.
Frontispiece to front title page.-All the rest in order at the end.