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MECHANICAL AND PHYSICAL SCIENCE,

CIVIL ENGINEERING, THE ARTS AND MANUFACTURES,

AND THE

RECORDING OF

AMERICAN AND OTHER PATENTED INVENTIONS.

EDITED

BY THOMAS P. JONES, M. D.

NIBE OF THE AMERICAN

PHILOSOPHICAL SOCIETY, OF THE ACADEMY OF NATIONAL
SCIENCES, PHILADELPHIA, THE AMERICAN

ACADEMY OF ARTS AND SCIENCES,
VASSACHUSETTS, THE NATIONAL INSTITUTION FOR THE PROMOTION OF
SCIENCE, WASHINGTON, CORRESPONDING MEMBER OF THE POLYTECH-
NIC SOCIETY OF PARIS, AND

OF THE CHILIAN AGRICULTURAL
SOCIETY, SANTIAGO,

COLLABORATORS.
Fr? Practical and Theoretical Mechanics.

For Physical Science.
JOHN C. CRESSON, Prof. Mech., Franklin ALEX. DALLAS BACHE, LL. D.
Institute.

SEARS C. WALKER.
Fer Pradinl and Theoretical Chemistry.

For Commerce and Manufactures.
J. C. BOOTH, Prof. Chem. of the Arts,

SAMUEL V. MERRICK.
Franklin Institute.

FREDERICK FRALEY.
JOHN F. FRAZER, Prof. General Chem., For Civil Engineering.

THOMPSON S. BROWN, C. E.
WILLIAM H. EMORY, U. S. Top. Eng.

ELLWOOD MORRIS, C. E.
Thus. C. WALTER, Prof. Architecture,

SOLOMON WR BERTS, C. E.

Franklin Institute.
JOHN GRISCOM, LL. D.
For Architecture.

Franklin Institute.

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PHILADELPHIA.
PUBLISHED BY THE FRANKLIN INSTITUTE, AT THEIR HALL.

1841

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Address to the Subscribers to the Journal of the Franklin Institute,

and to the Public generally. The Committee on Publications of the Franklin Institute, have determined to commence a New Series of the Journal under their charge, with the beginning of the new year. The January number will, accordingly, be No. I of the Third Series of the Journal of the Franklin

Institute.

This change they intend to connect with renewed efforts, as well in the intellectual matter as in the mechanical execution of the Journal.

The valuable papers of the late Chevalier de Gerstner and Mr. Klein, relating to the internal improvements of the United States, will be continued, and the Committee renew their solicitations to American Engineers to contribute the results of their practice to the valuable materials thus furnished to the American public by these distinguished foreigners. One of the most useful British journals contains numerous articles from the daily practice of engineers, which, though short, are interesting as well as valuable, results similar to which must be collected in every summer's work in the field. The Committee are indebted to Thomas U. Walter, Professor of Architecture in the Institute

, for the promise of original and selected matter in his interesting department.

The deductions of the Committee on Water Power, from the elaborate series of experiments made by them, and already published in the Journal, will be furnished in this new series, the first part being prepared for the February number. The valuable abstract of patents, with remarks upon them by the Editor, Doctor Thomas P. Jones, will

Vol. I, 3RD SERIES.-No. 1. JANUARY, 1841.

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