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Illustrated with Plates.
Appropriate Questions, and a Glossary:
PHILADELPHIA:
PUBLISHED AND SOLD BY JOHN GRIGG,
NO. 9 NORTH FOURTH STREET.
Stereotyped by L. Johnson.
1826.
Eastern District of Pennsylvania, to wit:
Be it remembered, that, on the twenty-fourth day of April, in theFiftieth year of the Independence of the United States of America, A. D.1826, John Grigg, of the said District, hath deposited in this officethe title of a book, the right whereof he claims as proprietor, in thewords following, to wit:
"Conversations on Natural Philosophy, in which the Elements ofthat Science are familiarly explained. Illustrated with Plates.By the Author of Conversations on Chemistry, &c. WithCorrections, Improvements, and considerable Additions, in theBody of the Work; appropriate Questions, and a Glossary: By Dr.Thomas P. Jones, Professor of Mechanics, in the FranklinInstitute, of the State of Pennsylvania."
In conformity to the Act of the Congress of the United States, entitled"An Act for the Encouragement of Learning, by securing the Copies ofMaps, Charts, and Books, to the Authors and Proprietors of such Copies,during the times therein mentioned;"—And also to the Act, entitled, "AnAct supplementary to an Act, entitled, 'An Act for the Encouragement ofLearning, by securing the Copies of Maps, Charts, and Books, to theAuthors and Proprietors of such Copies during the times thereinmentioned,' and extending the benefits thereof to the arts of designing,engraving, and etching, historical and other prints."
D. CALDWELL,
Clerk of the Eastern District of Pennsylvania.
Notwithstanding the great number of books which are written, expresslyfor the use of schools, and which embrace every subject on whichinstruction is given, it is a lamentable fact, that the catalogue ofthose which are well adapted to the intended purpose, is a very shortone. Almost all of them have been written, either by those who arewithout experience as teachers, or by teachers, deficient in a competentknowledge of the subjects, on which they treat. Every intelligentperson, who has devoted himself to the instruction of youth, must havefelt and deplored, the truth of these observations.
In most instances, the improvement of a work already in use, will bemore acceptable, than one of equal merit would be, which is entirelynew; the introduction of a book into schools, being always attended withsome difficulty.
The "Conversations on Chemistry," written by Mrs. Marcet, had obtained awell-merited celebrity, and was very extensively adopted as aschool-book, before the publication of her "Conversations on NaturalPhilosophy." This, also, has been much used for the same purpose; but,