"To Mr. Partington, I may observe, you will soon be placed under additional obligations, by a republication, upon an improved and economical plan of the excellent Lectures of the humble and self-instructed Philosopher, Ferguson; who may in some degree be regarded as the first popular or elementary writer on Natural Philosophy. This work, both on account of the original matter, and of the very useful Notes furnished by its ingenious commentator, to connect it with the present improved state of science, I strongly recommend you to purchase, peruse, and assiduously study."

DR. BIRKBECK.

“Mr. Ferguson may in some degree be regarded as the first elementary writer on Natural Philosophy, and to his labours we must attribute that general diffusion of scientific knowledge among the practical mechanics of this country, which has in a great measure banished those antiquated prejudices and erroneous maxims of construction, that perpetually mislead the unlettered artist."

DR. BREWSTER.

By the same Author,

AN INTRODUCTION TO ELECTRICITY:

With Copious Notes, and a Supplement ;

Illustrative of the present state of Voltaic Electricity and Electro Magnetism.

I had 118 Sulfercbers at Bath, — at Briskd. I have just finished a Course to 62, and it is likely that I shall begin a second course on Thursday next to about 24 Subscribers.

James Ferguson.

Fublished by Sherwood Jones &C. Dec? 1st 162 4.

ON

SELECT SUBJECTS

IN

MECHANICS, HYDROSTATICS, PNEUMATICS,
OPTICS, AND ASTRONOMY,

BY JAMES FERGUSON, F.R.S.

A NEW AND IMPROVED EditioN,

ADAPTED TO THE PRESENT STATE Of science,

BY

C. F. PARTINGTON,

Of the London Institution, Author of an Historical and Descriptive Account of the
Steam Engine, &c. &c.

Philosophia mater omnium bonarum artium est. CICERO, i. Tusc.

LONDON:

PUBLISHED BY SHERWOOD AND CO. PATERNOSTER ROW.