238 New Patents. [March, 



A Grammar of Infinite Forms ; or the Mathematical Elements of 

 Ancient Philosophy and Mythology ; by W. Howison. Post 8vo. 5s. 



A Compendious View of the History of the Darker Ages ; by C. 

 Chatfield, Esq. 8vo. 7*. 6rf. 



Prodromus Systematis Universalis Regni Vegetabilis, auctore Aug. 

 P. de Candolle. Part I. Thick 8vo. 1/. 5s. 



Article XVIII. 

 NEW PATENTS. 



G. M. Glascot, Great Garden-street, Whitechapel, brass-founder, 

 and T. Michell, Upper Thames-street, gent, for their improvements in 

 the construction or form of nails to be used in or for the securing of 

 copper and other sheathing on ships, and for other purposes. — Dec. 9. 



T. Home, the younger, Birmingham, brass-founder, for improve- 

 ments in the manufacture of rack pullies in brass or other metals. — 

 Dec. 9. 



W. Furnival, Droitwich, salt-manufacturer, and A. Smith, Glasgow, 

 master-mariner, for their improved boiler for steam-engines and other 

 purposes. — Dec. 9. 



Sir H. Heathcote, Surry-street, Strand, for his improvement of the 

 stay-sails generally in use for the purpose of intercepting wind between 

 the square sails of ships and other square-rigged vessels. — Dec. 13. 



J. Boot, Nottingham, lace-manufacturer, for his improved apparatus 

 to be used in the process of singing lace and other purposes. — Dec. 16. 



P. J. B. V. Gosset, Queen-street, Haymarket, merchant, for produc- 

 ing various shapes, patterns, and sizes from metals, or other materials, 

 capable of receiving an oval, round, or other form. — Dec. 18. 



T. Greenwood, Gildersoun, near Leeds, machine-maker, and J. 

 Thackrah, surgical mechanist, Leeds, for their improvements in pat- 

 terns and clocks. — Dec. 27. 



J. Vallance, Esq. Brighton, for his improved methods of freezing 

 water. — Jan. 1. 



F. Devereux, merchant, Cheapside, for certain improvements on the 

 mill or machine for grinding wheat and other articles, commonly 

 known by the name of the French Military Mill. — Jan. 8. 



J. Foot, Charles-street, Spitalfields, silk-manufacturer, for his im- 

 proved umbrella. — Jan. 15. 



J. White, New-road, Marylebone, architect, for his floating break- 

 water. — Jan. 15. 



J. Finlayson, Muirkirk, Ayrshire, farmer, for certain improvements 

 on ploughs and harrows. — Jan. 15. 



Jean le Grand, Leman-street, Goodman's-fields, vinegar-manufactu- 

 rer, for certain improvements in fermented liquors, and the various 

 products to be obtained therefrom. — Jan. 15. 



W. Gutteridge, Dean-street, St. Fin Barrs, Cork, musician and land- 

 surveyor, for certain improvements on the clarionet.— Jan. 19. 



