X. A collection of early tracts on the method of illuminating, and on the materials employed in that art.

XI. A collection of early tracts on the practice of lithotrity.

XII. Anglo-Saxon tracts of the tenth century on Botany and Natural History, with an account in Anglo-Saxon of the wonders of the East; together with some middle-age treatises on the same subjects, and a selection of figures of animals and plants from early manuscripts. To be edited with translations.

XIII. An original journal of Edward Fenton's voyage to St. Helena in the year 1582, interspersed with scientific observations and notices of English science.

XIV. A description of the Merva, a mechanical instrument invented by Simon Sturtevant of Christ's College, Cambridge ; from the autograph manuscript dedicated by the inventor to James I. To which will be added biographical notices of Sturtevant, and several hitherto inedited letters and documents.

XV. A collection of early tide tables, including a series made by John Marshall, temp. Elizabeth.

The following list of the names of English inedited writers is taken from the Synopsis Veterum Mathematicorum of Dr. Bernard, as being that of the authors which it was his intention to publish. This list will receive the marked attention of the Council, as the suggestion of one of the ablest of mathematical antiquaries.

Athelard, Bede, Bredon, Suisset, Wallingford, Bradwardin, Peckham, Lynne, Swinshed, Monke, Grrosteste, Rede, Wyrcestre, Evesham, Ashenden, Batecomb, Killingworth, Caerleon, Holywood, Bacon, Burroughs, Chylmead.

Gentlemen wishing to join the Society are requested to send their names received at the Society's bankers, to the Secratary, 35 Alfred Place, Bedford Square, London. Subscriptions Bankers.—Messrs. Cocks, Biddulph and Biddulph, 43 Charing-Cross.