The theory of William Miller : concerning the end of the world in 1843, utterly exploded ; with some other essays on the same subject.

Mode of access: Internet.

Principles of natural philosophy, or, A new theory of physics : founded on gravitation, and applied in explaining the general properties of matter, the phenomena of chemistry, electricity, galvanism, magnetism, & electro-magnetism /

Mode of access: Internet.

On the application of a new analytic method to the theory of curves and curved surfaces.

Mode of access: Internet.

Every man his own teacher; or, Lancaster's theory of education, practically displayed; being an introduction to arithmetic, written in thirteen parts. To which are annexed thirty-two cards of lessons, to be suspended in the school-room conformably to the Lancaster plan.

Mode of access: Internet.

The Scripture-theory of the earth, throughout all its revolutions, and all the periods of its existence, from the creation, to the final renovation of all things.

Mode of access: Internet.

The theory of moral sentiments, or, An essay towards an analysis of the principles by which men naturally judge concerning the conduct and character, first of their neighbors, and afterwards of themselves : to which is added, A dissertation on the origin of languages /

Extract from An account of the life and writings of Dr. Adam Smith, by Dugald Stewart: p. ii.

Elements of the theory of mechanics.

Mode of access: Internet.

The elements of the theory of astronomy /

Mode of access: Internet.

On the theory of the moon, and on the perturbations of the planets /

A new edition, 1834 (x, 115, [1], 15, xxxii p.) forms the first part of the author's treatise on this subject, issued in 10 parts, 1834-61.