A practical treatise on rail-roads and carriages, shewing the principles of estimating their strength, proportions, expense, and annual produce, and the conditions which render them effective, economical, and durable; with the theory, effect, and expense of steam carriages, stationary engines, and gas machines. Illustrated by four engravings and numerous useful tables.

Mode of access: Internet.

Strictures on Montgomery on the cotton manufactures of Great Britain and America. Also, a practical comparison of the cost of steam and water power in American.

Mode of access: Internet.

A treatise on navigation by steam; comprising a history of the steam engine, and an essay towards a system of the naval tactics peculiar to steam navigation, as applicable both to commerce and maritime warfare; including a comparison of its advantages as related to other systems in the circumstances of speed, safety and economy, but more particularly in that of the national defence.

Author's presentation copy.

The answer of Mr. Sullivan, to the letter and mis-statements of the Hon. Cadwallader D. Colden, in his "Brief exposition" of himself as the advocate of monopoly. The unconstitutionality or limitation of the monopoly demonstrated. The bad policy and injurious effects of it on the community exposed. The legality of an extension of the term of time of a patent when for the good of a state; and the just views and claims of patentees in steam navigation fully explained.

Pages 29-34 contain "Mr. Duer's opinion on the claim of Mr. Sullivan as a patentee, to navigate with steam boats, the waters of the state of New-York."