Lint of Patents for neiv Inventions. 305 



Mr. A. T. Thomson will commence his Lectures on General 

 and Medical Botany, on Tuesday the 3d of June, at two o'clock, 

 in the Anatomical Theatre, Blenheim-street. 



t.IST OF PATENTS FOR NEW INVENTIONS. 



To Antonio Joaquim Friere Marrere, of Broad-street BirildingS 

 in the city of London, merchant, for an invention communicated 

 to liim by Luis Coctano Altina de Campos, residing abroad, of a 

 method of making or manufacturing an improved machine or in- 

 strument for calculating and ascertaining the longitude at sea. 

 — Allowed six months to enroll the specification. — Dated 2yth 

 April, 1817. 



To William Collins, esq. of Maize-Hill, Greenwich, Kent, for 

 his improvement or improvements in the composition and pre- 

 paration of a metal for the manufacturing thereof into sheets or 

 plates, and the application, when so prepared and manufactured, 

 to the preservation of ships, by sheathing or covering the bottoms 

 therewith,, an'd an improvement or improvements of the chain- 

 pumps used on board ships. — 6th May. — 2 months. 



To Henry Wilms, of Union-street, Lambeth, Surrey, cabinet- 

 maker, for his artificial leg, arm, and hand, on an improved con- 

 struction. — Sth May. — 2 months. 



To James Gerard Colbert, of Winpley-street, in the parish of 

 St. Marylebone, Middlesex, mechanical watch-maker (in couse- 

 (|uence of a communication from a certain foreigner residing 

 abroad), for certain improvements in the method or methods of 

 jnaking screws of iron, brass, steel, or other metals, for the use 

 of all kinds of wood-work. — 13th May. — 2 months. 



To Richard Williams the elder, of Durslev, Gloucestershire, 

 card-maker, for certaiii improvements in manufacturing of cards 

 for dressing woollen cloths. — 13th May. — 2 mouths. 



To John Walker, residing at No. 12 Great Cliarles-strcct, 

 Blackfriars Road, Surrey, millwright, for his improved method 

 of separating or extracting the melasses or treacle from and out 

 of Muscavado, brown, or new sugar. — 13th May. — 2 months. 



To Archibald Thomson, of Church-street, parish of Christ- 

 church, Surrey, machinist and engineer, for his machine for 

 cutting corks. — 17th May. — G months. 



To Robert Salmon, of Woburn, Bedfordshire, gentleman, for 

 his apparatus for the more useful, safe, pleasant, and a-conomic 

 use of candles, and also improvements in the apparatus now ia 

 use for part of the same ends. — 17th May. — (i months. 



To William Bound, of Ray-street, CJerkcnwell, Middlesex, 

 ironfoundcr, and William Stone, of Berkeley-street in the same 

 parish and county, brass-founders, for their method of applying 



certain 



