Vict. cap. 115, A.D. 1853); together with the RULES and
REGULATIONS issued by the Commissioners of Patents for
Inventions, and by the Lord Chancellor and the Master of the
Rolls, under the Acts 15 & 16 Vict. c. 83, and 16 & 17 Vict.
c. 115. Price 6d. By Post, 7d.

2. APPENDIX to the SPECIFICATIONS of ENGLISH PATENTS for REAPING MACHINES. By B. WOODCROFT, F.R.S. Price 6s. 6d. By Post, 6s. 11d.

3. INDEX to ALL INVENTIONS PATENTED in ENGLAND from 1617 to 1854 inclusive, arranged under the greatest number of heads, with parallel references to INVENTIONS and DISCOVERIES described in the scientific works of VARIOUS NATIONS, as classified by Professor Schubarth. By B. WOODCROFT, F.R.S. Price 1s. By Post, 1s. 1d.

The foreign works thus indexed form a portion of the Library of the Commissioners of Patents, where they may be consulted. 4. EXTENSION of PATENTS to the COLONIES.-Abstract of Replies to the Secretary of State's Circular Despatch of January 2, 1853, on the subject of the Extension of Patents for Inventions to the Colonies. Second Edition, with Revised Table. Price 2s. By Post, 2s. 2d.

1861.

5. SUPPLEMENT to the SERIES of LETTERS PATENT and SPECIFICATIONS, from A.D. 1617 to Oct. 1852; consisting for the most part of Reprints of scarce Pamphlets, descriptive of the early patented Inventions comprised in that Series. In one vol. (containing 11 tracts), price 9s. 6d., by post, 10s., or each tract separately at the price printed thereon.

CONTENTS.

1. Metallica; or the Treatise of Metallica, briefly comprehending the doctrine of diverse new metallical inventions, &c. By SIMON STURTEVANT. (Letters Patent, dated 29th February 1611.) Price 1s. 4d.; by post, 1s. 5d. 2. A Treatise of Metallica, but not that which was published by Mr. Simon Sturtevant, upon his Patent, &c. By JOHN ROVENZON. (Letters Patent granted A.D. 1612.) Price 4d; by post, 5d.

3. A Commission directed to Sir Richard Wynne and others to inquire upon oath whether NICHOLAS PAGE or Sir NICHOLAS HALSE was the first inventor of certaine kilnes for the drying of malt, &c. &c. (Letters Patent, Nos. 33 and 85, respectively dated 8th April 1626, and 23rd July 1635.) Price 2d.; by post, 3d.

4. DUD DUDLEY'S Metallum Martis; or iron made with pit-coale, sea-coale, &c. (Letters Patent, Nos. 18 and 117, respectively dated 22nd February 1620, and 2nd May 1638.) Price 8d.; by post, 9d.

5. Description of the nature and working of the Patent Waterscoop Wheels invented by WILLIAM WHELER, as compared with the raising wheels now in common use. By J. W. B. Translated from the Dutch by Dr. Tolhausen. (Letters Patent, No. 127, dated 24th June 1642.) Price 2s.; by post, 28. 2d.

6. Anexact and true definition of the stupendous Water-commanding Engine, invented by the Right Honourable (and deservedly to be praised and admired) EDWARD SOMERSET, Lord Marquis of WORCESTER, &c. &c. (Stat. 15 Car. II. c. 12. A.D. 1663.) Price 4d.; by post, 5d.

7. Navigation improved; or the art of rowing ships of all rates in calms with a more easy, swift, and steady motion than oars can. By THOMAS SAVERY. (Letters Patent, No. 347, dated 10th January 1696.) Price 1s.; by post, 1s. 1d.

8. The Miner's Friend; or an engine to raise water by fire, described, &c. By THOMAS SAVERY. (Letters Patent, No. 356, dated 25th July 1698, and Stat. 10 & 11 Will, III. c, 31, A.D. 1699.) Price 18.; by post, 18. 1d.

8

9. Specimina Ichnographica; or a brief narrative of several new inventions and experiments, particularly the navigating a ship in a calm, &c. By JOHN ALLEN, M.D. (Letters Patent, No. 513, dated 7th August 1729.) Price Sd.; by post, 9d.

10. A description and draught of a new-invented Machine for carrying vessels or ships out of or into any harbour, port, or river against wind and tide, or in a calm, &c. By JONATHAN HULLS. (Letters Patent, No. 556 ̧ dated 21st December 1736.) Price 8d.; by post, 9d.

11. An historical account of a new method for extracting the foul air out of ships, &c., with the description and draught of the machines by which it is performed, &c. By SAMUEL SUTTON, the Inventor. To which are annexed two relations given thereof to the Royal Society by Dr. Mead and Mr. Watson. (Letters Patent, No. 602, dated 16th March 1744.) Price 1s.; by post, ls. 1d.

A FREE LIBRARY and READING ROOMS are open to the Public daily, from 10 till 4 o'clock, in the Office of the Commissioners of Patents, 25, Southampton Buildings, Chancery Lane. In addition to the printed Specifications, Indexes, and other publications of the Commissioners, the Library includes a Collection of the leading British and Foreign Scientific Journals, and text-books in the various departments of science and art.

Complete sets of the Commissioners of Patents' publications (each set including nearly 2,650 volumes) have been presented to the authorities of the most important towns in the kingdom, on condition that the works shall be rendered daily accessible to the public, for reference or for copying, free of all charge. The following list gives the names of the towns, and shows the place of deposit, so far as ascertained, of each set of the works thus presented :

Grimsby, Great (Mechanics' Institu tion, l'ictoria Street).

Halifax.

Hanley, Staffordshire Potteries (Town
Hall).

Hertford (Free Public Library, Town
Hall).

Huddersfield (Improvement Commis-
sioners' Offices, South Parade).

Hull (Mechanics' Institute, George
Street).

Ipswich (Museum Library, Museum
Street).

Keighley (Mechanics' Institute, North
Street).

Kidderminster (Public Free Library,
Public Buildings, Vicar Street).
King's Lynn, Norfolk (Stanley Li-
brary, Athenæum).

Lancaster (Mechanics' Institute, Mar-
ket Street).

Leamington Priors (Public Library,
Town Hall).

Leeds (Public Library, Infirmary
Buildings).

Leicester (Free Library, Wellington
Street).

Limerick (Town Hall).

Liverpool (Free Public Library, William Brown Street).

London (British Museum).

(Society of Arts, John Street, Adelphi).

The Commissioners' publications have also been presented to the following Public Offices, Seats of Learning, Societies, British Colonies, and Foreign States :

Argentine Republic-Buenos Ayres.
Austria-Handels Ministerium, Vienna.
Belgium-Ministère de l'Intérieur, Brussels.
Musée de l'Industrie, Brussels.

France-Bibliothèque Nationale,

Conservatoire des Arts et Métiers,
Hôtel de Ville,

Paris.

Germany-Bavaria-Königliche Bibliothek, Munich.
Gotha-Ducal Friedenstein Collection.
Prussia-Gewerbe-Akademie, Berlin.

Königliche Bibliothek, Berlin.

Königliche Polytechnische Schule, Hanover.
Société Industrielle, Mulhouse.

Saxony-Polytechnische Schule, Dresden.

Wurtemberg-Bibliothek des Musterlagers, Stuttgart.

Italy-Ufficio delle Privative, Florence.

Netherlands-Harlem.

Russia-Bibliothèque Impériale, St. Petersburg.

Spain-Madrid.

Sweden-Teknologiska Institutet, Stockholm.

United States-Patent Office, Washington.
Astor Library, New York.

State Library, Albany.

Franklin Institute, Philadelphia.
Free Library, Boston.

Library Company, Philadelphia.
Library Association, Chicago.

Peabody Institute, Baltimore.

Historical Society, Madison, Wisconsin.
Cornell University, Ithaca, N.Y.
Mercantile Library, St. Louis.

Grants of complete series of Abridgments of Specifications have been made to the undermentioned Mechanics, Literary, and Scientific

Institutions:

Aberystwith (Literary and Working
Men's Reading Room).

Alnwick (Scientific and Mechanical
Institution).

Altrincham (Altrincham and Bowdon
Literary Institution).
Ashby-de-la-Zouch (Mutual Improve-
ment Society).

Bacup (Mechanics' Institution).
Ballymoney (Town Hall).

Banbridge (Literary and Mutual Im-
provement Society).

Banbury (Mechanics' Institution).
Barnstaple (Literary and Scientific
Institution).
Bath (Athenaeum).

Batley (Mechanics' Institution).
Battle (Young Men's Christian Asso-
ciation).

Belfast (Athenæum).

Berkhampstead, Great (Working Men's
College).

Birmingham (Birmingham Heath and
Smethwick Working Men's Club
and Institute).

(Bloomsbury Institution).
(Central Lending Library)
(Deritend Working Men's

Association).