Tanner, 797, O. Description of the Canals and Railroads of the United States. By H. S. Tanner. New York, 1840.

Totten, 1114 & 1115, O. Essays on Hydraulic and Common Mortars, and on Lime-burning. Translated from the French of Gen. Treussart, M. Petot, & M. Courtois. With Brief Observations on Common Mortars, Hydraulic Mortars, and Concretes, and An Account of Some Experiments made. therewith at Fort Adams, Newport Harbor, Rhode Island, from 1825 to 1838. By Col. J. G. Totten. 2 copies. Philadelphia, 1938.

Tredgold, 711, Q. The Steam Engine-and an Investigation of its Principles for Navigation, Manufactures, and Railroads. By T. Tredgold. 2 vols. London, 1838.

67, O. Practical Treatise on Railroads and Carriages. By Thomas Tredgold. London, 1825.

30, Q. The Steam Engine; Comprising an Account of its Invention. By Thomas Tredgold. London, 1827.

Vaughan, 732, O. Tracts on Docks and Commerce. By William Vaughan. London, 1839.

Vicat, 644, O. Treatise on Calcareous Mortars and Cements-Artificial and Natural. By L. J. Vicat. Translated by Capt. J. T. Smith. London, 1837.

Virginia, 1089, O. Annual Reports of the Board of Public Works, to the General Assembly of Virginia; and other Documents on Subjects connected with the Fund for Internal Improvements. Vol. 3, 6th Report, for 1821; to vol. 13, 29th Report, for 1844, inclusive.

Walker, 91 & 92, O. Report to the Directors of the Liverpool and Manchester Railway, on the Comparative Merits of Locomo

tive and Fixed Engines, as a Moving Power. By James Walker. 2 copies. Philadelphia, 1831.

Weale, 1129, F. The Public Works of the United States. Parts 1 and 2. Wood, 435, O. A Practical Treatise on Railroads. By Nicholas Wood. 1st Am. ed. By G. W. Smith. 1832.

Pamphlets, 902, O.

ON RAILWAYS AND STEAM-IN 3 VOLS.

Vol. 1, containing

Journal of Elemental Locomotion, or Monthly Advocate of the Advantages to arise from the Substitution of Inanimate

for Animate Power, and Reporter of all Projects, Inventions, Discoveries, Patents, &c., of National Utility. Edited by Alexander Gordon, Esq., Civil Engineer. London, 1832. The Advantages and Profits of the Southampton Railway Analysed. London, 1834.

Extracts from the Evidence given on the London and Southampton Railway Bill, as printed by order of the House of Lords. Great Western Railway. Extracts from the Minutes of Evidence on the London and Birmingham Railway Bill, together with Abstracts from Acts of Parliament. London, 1833. Proceedings of the Great Western Railway Company, with Extracts from the Evidence given in Support of the Bill, before the Committee of the House of Commons, in the Session of 1834. London, 1834.

Extracts from the Minutes of Evidence given before the Committee of the House of Commons on the Great Western Railway Bill. Bristol, 1834.

The Great Western Railway, compared with other Railways. London, 1835.

Two Reports addressed to the Liverpool and Manchester Railway Company, on the Projected North Line of Railway, from Liverpool to the Manchester, Bolton, and Bury Canal. By Charles Vignoles and Joseph Locke. Liverpool, 1835. Statements, &c., relative to the London and Blackwall Railway. London, 1836.

Liverpool and Manchester Railway: Answer of the Directors to an Article in the Edinburgh Review, for October, 1832. Liverpool, 1832.

The Advantages of Railways with Locomotive Engines, espe

cially the London and Greenwich Railway. London, 1833. Practice of Agriculture, as Regards the Construction of Roads. (Imperfect).

A Letter addressed to Nicholas Wood Esq., on that portion of Chapter IX. of his Treatise on Railroads, entitled "Comparative Performances of Motive Power on Canals and Rail. roads." By Thomas Grahame, Esq. Glasgow, 1831. Observations on the Comparative Merits of Canals and Railways. London, 1832.

Mr. Gurney's Observations on Steam Carriages on Turnpike Roads. London, 1832.

902, O.

902, O.

Debate on the Presentation of Mr. Gurney's Petition, praying
for the Repeal of the Legislative Restrictions on Steam En-
gines running on Common Roads. London, 1834.
Address to the Shareholders of the London and Birming-
ham Steam Carriage Company.

Vol. 2, containing

An Account of the Caloric Engine, Invented by J. Ericsson. Specification of the Patent of John Udny, for Improvement on the Steam Engine. Translated from the French.

Samuel Hall's Patent Improvements on Steam Engines. Nottingham, 1835.

Experiments on the Transverse Strength and other Proper

ties of Malleable Iron, with reference to its Uses for Railway
Bars, and a Report founded on the same, addressed to the
Directors of the London and Birmingham Railway Company.
By Peter Barlow, F. R. S. London, 1835.
Second Report on ditto.

Expositions and Illustrations interesting to all those con-
cerned in Steam Power, whether as applied to Rail-Roads,
Common Roads, or to Sea and Inland Navigation. By
Francis Maceroni. London, 1835.

Remarks on the Steam Engines of Cornwall. By Elijah Gal-
loway, Esq., M. R. I., Civil Engineer. London, 1832.

Vol. 3, containing

Standing Orders of the Houses of Lords and Commons, with regard to Railway Bills. London, 1836.

Report from the Select Committee on Railway Bills; and Resolutions of the House of Commons thereon. London, 1836. On the Superior Advantages of the Patent Improved SteamBoilers, Invented by Elisha Haydon Collier, Civil Engineer; and especially in respect to their Lightness, Compactness, Safety, and Economy in the Consumption of Fuel on board Steam Vessels. London.

On the Means of Comparing the Respective Advantages of Different Lines of Railway; and on the Use of Locomotive Engines. Translated from the French of M. Navier, Ingeneur en chef des Ponts et Chaussées, Paris. By John Macneill, Civil Engineer, M. R. N. A., F. R. A. S. London, 1836.

Statements illustrative of the Necessity for Additional Means of
Communication between London and Blackwall.
With an
Examination of the Comparative Suitableness of the Railways
projected by the London and Blackwall Railway Company
(George Stephenson Esq., Engineer), and Black wall Com-
mercial Railway Company (Sir John Rennie, Engineer), to
supply those additional means. London, 1836.

A Letter in Reply to Observations on the subject of the Midland
Counties' Railway, by N. W. Cundy, C. E. By Matthew
Babington. Leicester, 1835.

Speech on the Improvement of the Shannon. Being in Conti-
nuation of the Debate in the House of Commons, 12th May,
1835, giving a Comparative View of the Navigation of the
Rideau Canal in Canada, and the River Shannon in Ireland;
with Observations on the Value of a Connexion by Steam
Packets with British America. London, 1835.

The Direct London and Brighton Railway, session 1836; Speech of David Pollock Esq. on the Summing-up of the Evidence of Traffic, given before the Committee of the House of Commons, in support of Sir John Rennie's, or Direct Line. London, 1836. Railroads. Statements and Reflections thereon; particularly with Reference to the proposed Railroad without a Tunnel, and the Competition for the Line between London and Brighton. By a Shareholder; at the request of other Shareholders. London, 1836.

Vorschlag zur herstellung einer Eisenbahn im gross herzogthum Baden von manheim bis Basel und an den Bodensee, &c. &c. Von L. Newhouse. Karlsruhe, 1833. Observations on a General Iron Railway (with a Geographical Map of the Plan); showing its great Superiority, by the general introduction of Mechanic Power, over all the present Methods of Conveyance by Turnpike Roads and Canals, and claiming the particular Attention of Merchants, Manufacturers, Farmers, and indeed every class of Society. 3d edition, revised and enlarged. London, 1822.

PERIODICALS.

Boston, 263, O. The Mechanic's Magazine and Journal of Internal Improvements. Vol. 1.

Glasgow, 929, Q. Practical Mechanics' and Engineers' Magazine.

Vols. 1 to

London, 728, O. The Railway Magazine and Annals of Science. Vols. 2 to 6.

782, Q. Civil Engineers' and Architects' Journal. Vols. 1 to 8.

857, Q. The Railway Magazine and Commercial Journal. Vols. 1 to 5.

New York, 431, Q. The American Railroad Journal. Vols. 1 to 4. 692, O. The American Railroad Journal and Mechanics'

Magazine. Vols. 1 to 10.

Paris, 507, O. Annales des Ponts et Chaussées. 1 to 24.
Weale, 1080, Q. Quarterly Papers on Engineering. Published by
John Weale. 5 vols. London, 1844 to 1846.

(For other papers on RAILWAYS AND CANALS, see List of "Unbound Pamphlets" at end of Catalogue.)

Education.

Am. Inst. of Instruction, 442, O. Lectures delivered before the American Institute of Instruction, in Boston, in 1830. Boston,

1831.

427, O. Do. do. for 1831, including a Prize Essay

on the Construction of School Houses.

423, O. Do. do. for 1832, including a Prize Essay on Penmanship. Boston, 1832.

Babbage, 78, O. Reflections on the Decline of Science in England, and on Some of its Causes. By Charles Babbage. London, 1830.

Bache, 739, O. Report on Education in Europe, to the Trustees of the Girard College for Orphans. By Alexander D. Bache, LL. D. Philadelphia, 1839.