398 New Patents. [May, 



illustrated with Ca$es. By G. C. Monteath, MD. Illustrated by four 

 highly coloured Plates, and one Plate of Instruments. 2 vols. 8vo. 

 1/. 10*. 



Practical Observations on Midwifery. By John Ramsbottom, MD. 

 8vo. Parti. \Os,Qd. 



The History of the Plague, as it lately appeared at Malta, Gozo, &c. 

 By J. D. Tully, Esq. 8vo. 



A Practical Treatise on the Inflammatory, Organic, tmd Sympathe- 

 tic Diseases of the Heart; also on Malforniatixjn, Aneurism. &c. By 

 Henry Reeder, MD. RMS. Edin. and MCS. Lond. 



The ninth Number of Ferussac's Natural History of Land and 

 Jj'reshwater Shells is just published. 



Useful Knowledge, or a Familiar Account of the various Produc- 

 tion^ of Nature, Mineral, Vegetable, and Animal. By the Rev. W. 

 Bingley, AM. Third Edit. 3 vols. 12mo. \l.\s. 



Transactions of the Cambridge Philosophical Society. Vol. I. 

 Part I. 4to. ]/. 



Illustrations of the Linnaean Genera of Insects. By W. Wood, 

 FRS. FLS. Part I. with 14? coloured Plates, 5s. to be completed in 

 ax monthly Parts. 



The Natural History System of Mineralogy. By Frederick Mohs, 

 Professor of Mineralogy, Freiberg. Svo. 6^. 6d. 



Article XV. 



NEW PATENTS. 



Thomas Masterman, of Broad-street, Ratcliffe, common brewer, for 

 certain machinery for the purpose of imparting motion to be worked 

 by steam and water, without either cylinder or piston, and with less 

 loss of power than occurs in working any of the steam-engines now in 

 use.—Feb. 10, 1821. 



Robert Stein, of Walcot-place, Lambeth, for certain improvements 

 in steam-engines. — Feb. 20. 



James Foster, of Stourbridge, iron- master, for certain improvements 

 in the manufacture of wrought malleable iron. — Feb. 20. 



Henry Penneck, of Penzance, MD. for an improvement, or im- 

 provements, of machinery to lessen the consumption of fuel in working 

 steam-engines. — Feb. 27. 



Robert Burton Cooper, of the Strand, London, for improvements 

 on, or a substitute for, stoppers, covers, or lids, such as are used for 

 bottles, tobacco, and snuff-boxes, ink-holders, and various other arti- 

 cles requiring stoppers, covers, or lids — March 3. 



Jonathan Dickson, Holland-street, Blackfriars, forvaluable improve- 

 ments in the means of transmitting heat, and also in the means of 

 transmitting cold from one body to another, whether solids or fluids. — 

 March 3. 



William Frederick Collard, of Tottenham-court-road, for certain 

 improvements on musical instruments called piano-fortes, — March 8. 



