John Cooper Douglas, 5, Great Ormond Street, Esq., for certain improvements in the construction of furnaces for generating heat, and also in the construction of apparatus or vessels for applying heat to various useful purposes. Six months; November 19.

John Cooper Douglas, 5, Great Ormond Street, Esq., for certain improvements which prevent either the explosion or the collapse of steam and other boilers from an excess of internal or external pressure. months; November 19.

Six

Marcel Roman, of St. Michael's Alley, Cornhill, merchant, for certain improvements in or additions to apparatus or methods employed in throwing or winding silk or other threads. Four months; November 19.

Barthelemy Richard Comte de Prêdaval, of Leicester Place, Leicester Square, engineer, for an engine for producing motive power, applicable to various purposes. Six months; November 19.

Stephen Perry, of Wilmington Square, Clerkenwell, gentleman, Edward Massey, sen. of 20, King Street, watchmaker, and Paul Joseph Gauci, of 10, Charles Street, Middlesex Hospital, artist, for certain improvements in pens and penholders. Six months; November 19.

Daniel Ledsam and William Jones, both of Birmingham, screw manufacturers, for certain improvements in machinery to be used in the manufacture of pins and needles. Six months; November 21.

John Cooper Douglas, 5, Great Ormond Street, Esq., for certain improvements for depriving vegetable juices and fermented and distilled liquids of their acid qualities,

also of their colouring matter and essential oils. Six months; November 21.

Henry Hardingham Leggett, of Fulham, gent., for certain improvements in the art of printing in colours. Six months; November 23.

Thomas Parsons, of Newport, gent., for certain improvements in locks for fastenings. Six months; December 3.

John Hall, of Breezes Hill, Ratcliffe Highway, sugar refiner, for certain improvements in filters for sugar and other liquids. Six months; December 6.

Joshua Wordsworth, of Leeds, machine maker, for certain improvements in machinery or apparatus for heckling flax, hemp, and other fibrous substances requiring such process. Six months; December 6.

Ernst Wolff, late of Leeds, merchant, but now of Stamford Hill, Middlesex, gent., for a mode or modes of supplying stoves with heated air, without bellows or blowpipe, being a communication from a foreigner residing abroad. Six months; December 7.

John Baptiste Constantine Forassa, of Newington Causeway, Surrey, gent.; Paul Isaac Muston, of Austin Friars, merchant; and Henry Walker Wood, of the same place, merchant, for certain improvements in making or producing the pigment, commonly known by the name of white lead, or carbonate of lead. Six months; December 11.

Thomas Affleck, of Dumfries, merchant, for certain improvements in the means and machinery for deepening and excavating the beds of rivers, removing sand-banks, bars, and other obstructions to navigation. Six months; December 11.

Riley Carr, of Sheffield, manufacturer, for certain improvements in machinery for cutting, cropping, and dressing woollen and cotton cloths. Six months; December 11.

Robert Stephenson, the younger, of St. Mary's Cottage, Downshire Hill, Hampstead, civil engineer, for an improvement in the mode of supporting the iron rails for edge railways. Six months; December 11.

John Wisher, of Vauxhall, Surrey, potter, for certain improvements in machinery or apparatus for grinding covers or stoppers for jars, bottles, and other vessels made of china, stone, or other earthenware. months; December 11.

Six

Lemuel William Wright, of the London Road, Southwark, for a certain improvement or certain improvements in the combination and arrangement of machinery, or in apparatus whereby certain well-known agents may be employed in producing power, and in the mode of effecting the same, applicable to various useful purposes. Six months; December 16.

Thomas Sunderland, of Blackheath, Esq., for certain improvements in propelling vessels. Six months; December 19.

Charles Chubb, of St. Paul's Churchyard, London, patent detector lock manufacturer, and Ebenezer Hunter, of Wolverhampton, locksmith, for certain improvements in locks used for fastening and security. Six months; December 20.

David Rowland, of 68, Crawford Street, Marylebone, mechanic, for an improvement in the manufacture of sextants, quadrants, circles, and other instruments used in taking observations and surveys. Two months; December 20.

Louis Quaintin, of the Sabloniere Hotel, Leicester Square, carriage builder, for certain improvements in the construction of carriages. Six months; December 20.

James Hamilton, of Threadneedle Street, London, civil engineer, for certain improvements in machinery for sawing, boring, and manufacturing wood applicable to various purposes. Six months; December 20.

Thomas, Earl of Dundonald, for certain improvements in the construction and operation of rotary engines and apparatus connected therewith. Six months; December 20.

Josiah Gilbert Pierson, of New York, United States, but now residing in Ludgate Hill, London, merchant, for certain improvements in the constructions of bolts and latches, to be attached to doors and other situations where a secure fastening may be required. Six months; December 20.

John Paul Newman, of Cornhill, London, merchant, for certain improvements in making or producing leather from hides and skins, being a communication from a foreigner residing abroad. Six months;

December 21.

John Howard Kyan, of Upper Baker Street, Esq., for a new combination of machinery to be applied to the present purposes of steam navigation, in aid of and in substitution for the motive power, hitherto and at present obtained and afforded by the application of steam. Six months; December 21.

George Dickinson, of Buckland, near Dover, paper maker, for an improvement or improvements applicable to making of paper. Six months; December 28.