78 New Patents. [JuLY r 



Essays on Hypochondriasis, and other Nervous Affections. By 

 John Reid, MD. 8vo. 12s. 



An Account of the Rise, Progress, and Decline of the Fever, lately 

 epidemical in Ireland, together with Communications from Physicians 

 in the Provinces, and various official Documents. By F. Barker, MD. 

 and J. Cheyne,MD. 2 Vols. Svo. i/. 6s. 



Culinary Chemistry, exhibiting the Scientific Principles of Cookery, 

 with Observations on the Chemical Constitution and Nutritive Quali- 

 ties of different Kinds of Food. With Plates. 12mo. 9s.6d. 



A Manual of Mineralogy ; containing an Account of Simple Mine- 

 rals, and also a Description and Arrangement of Mountain Rocks. 

 By Robert Jameson. Svo. 15s. 



A Selection of the Correspondence of Linnaeus, and other Natural- 

 ists, from the Original Manuscripts. By Sir James Edward Smith, 

 MD. 2 Vols. Svo. U.lOs. 



Elements of the Philosophy of Plants : containing the Scientific 

 Principles of Botany ; Nomenclature, Theory of Classification, Phyto- 

 graphy, Anatomy, Chemistry, Physiology, Ecography, and Diseases 

 of Plants: with a History of the Science, and Practical Illustrations. 

 By A. P. Decandolle and K. Sprengell. Translated from the German. 

 8vo. 155. 



General and Particular Descriptions of the Vertebrated Animals, 

 arranged conformably to the Modern Discoveries and Improvements 

 in Zoology. By Edward Griffith. Part I. containing Order Quadru- 

 ruana. 35 coloured Plates, 4to. 1/. 5s. 



Article XVI. 

 NEW PATENTS. 



James Henry Marsh, of Chenies-street, Tottenham-court-road, for 

 improvements on wheeled carriages. — April 17, 1821. 



James Smith, of Hackney, for an improvement or improvements in. 

 the method or methods of machinery employed for shearing or crop- 

 ping woollen cloth. — April 18. 



Alexander Law, of the Commercial-road, Stepney, founder, for an 

 improved mode of forming bolts and rails for ship fastenings, &c. — 

 May 1. 



William Thomas and Joseph Lobb, of Sithney, Cornwall, for a 

 machine for cutting and preparing lay or lea ground for tillage with 

 less expence, and in a shorter time than by the present mode of 

 ploughing ; and also for renewing grass land, lay or lea ground, with 

 seeds, without destroying the surface. — May 1. 



Robert Delap, of Belfast, Ireland, merchant, for improvements in 

 producing rotatory motion. — May 1. 



Richard Jones Tomlinson, of Bristol, merchant, for an improved 

 rafter for roofs, or beam, for other purposes. — May 3. 



John Redhead, of Heworth, Durham, engineer and mariner ; and 

 William Parrey, of East-lane, Walworth, master mariner, for certain 

 improvements in propelling vessels. — May 5. 



