1820.] New Patents. 235 



A new Method of solving Equations with Ease and Expedition, by which 

 the true Value of the unknown is found without previous Reduction. By T. 

 Holdred. 4to. 7s. 



An Essay on Involution and Evolution. By Peter Nicholson, 8vo. 6s. 



Pomarium Britannicum, an Historical and Botanical Account of Fruits 

 known in Great Britain. By Henry Phillips, royal 8vo. ll. Is. 



Observations on the Nature and Extent of the Cod Fishery carried on off the 

 Zetland and Orkney Islands. By A. Edmonston, M.D. 8vo. 2^. 



Observations on a general Iron Rail- Way, showing its great Superiority 

 over all the present Methods of Conveyance. 8vo. Is.Od. 



Observations on Variolous Inoculation and Vaccination. By J. F. Hul- 

 bert. 12mo. 



Popular Observations on Regimen and Diet. By J. Tweed. 12n)o. S>s. 



Lectures on the Philosophy of History, with Notes and illustrative Engrav- 

 ings. By the late Rev. Ezekiel Blomfield. 4to. ll. 



The Heraldic Origin of Gothic Architecture in Answer to all foregoing 

 Systems. By Rowley Lascelles, Esq. Royal 8vo. 7*. 



An Account of the Improvements on the Estates of the Marquis of Stafford, 

 in the Counties of Stafford and Salop, and on the Estate of Sutherland, with 

 Remarks. By James Loch, Esq. 8vo. 12*. 



Article XIV. 

 NEW PATENTS. 



John Read, of Horsmanden, Kent, for an improvement on syringes. July 

 11, 1820. 



Samuel Fletcher, of Walsall, Staffordshire, sadlers' ironmonger, for an im- 

 provement on, or additions to, saddles, saddle-straps, saddle-girths, and saddle- 

 cloths, by the application of certain known materials, hitherto unused for that 

 purpose. July 11, 1820. 



James White, of Manchester, for certain new machinery, adapted to prepar- 

 ing and spinning wool, cotton, and other fibrous substances, and uniting several 

 threads into one ; and also certain combinations of the said machinery with 

 other machines, or with various parts only of other machines already known 

 and in use. July 11, 1820. 



John Grafton, of Edinburgh, for a new and improved method of distilling 

 the products of coal, and carbonising coal, in the process of making gas used for 

 the purpose of illumination. July 11, 1820. 



William Davis, of Bourne, near Minchin Hampton, Gloucestershire, for 

 improvements in machinery for shearing or cropping woollen and other cloths 

 requiring such process. July 11, 1820. 



Matthew Bush, of Battersea-fields, for an improvement on a machine now iii 

 use for printing silks, linens, calicos, woollens, and other similar fabricks, by 

 means of which improvement, shawls and handkerchiefs can be printed with 

 one or more colour or colours, and whereby linens, calicoes, silks, woollens, 

 and other fabrics of the like nature, for garments, can be printed with two or 

 more colours. July 20, 1 820. 



John Hudswell, of Addle-street, London, for an improvement in the manu- 

 factory of wafers. July 20, 1820. 



William Dell, of Southampton, for an improvement in gun-barrels, July 

 20, 1820. 



Robert Bowman, of Manchester, for improvements in the construction of 

 looms for weaving various sorts of cloths, which looms may be set in motion 

 by any adequate power. July 20, 1820. 



