318 New Patents. [April, 



JUST PUBLISHED. 



A Second Letter to Sir John Cox Hippesley, on the Mischiefs inci- 

 dental to the Tread-Wheel, as an Instrument of Prison Discipline, 

 containing an Examination of the Official Reports upon this Subject, 

 returned to the Secretary of State's Office, during each Session of 

 Parliament. By John Mason Good, MD. FRS. &c. Price 2s. 6d. 



The West India Colonies : the Calumnies and Misrepresentations 

 circulated against them by the Edinburgh Review, Mr. Clarkson, Mr. 

 Cropper, &c. examined and refuted. By James Mac Queen. 8vo. 



125. 



The Pupil's Pharmacopoeia; being a literal Translation of the New 

 Edition of the London Pharmacopoeia, &c. By W. Maugham, 

 surgeon. 6s. 



Sketches of the Philosophy of Apparitions ; or an Attempt to trace 

 such Illusions to their Physical Causes. By S. Hibbert, MD. FRSE. 

 &c. 10s. 6d. 



The English Flora. By Sir James E. Smith, President of the Lin- 

 nsean Society, &c. Vols. 1 and 2. ll. 4s. 



The New Pharmacopoeia of the Royal College of Physicians of 

 London, 1824; translated by Sir George L. Tuthill, Kt. MD. FRS, 

 8vo. 7s. 18mo. 4*. 



Gardner on Iodine. 8vo. 4s. 



Article XIX. 

 NEW PATENTS. 



G. Pollard, Rupert-street, St. James, Middlesex, brass-founder, for 

 certain improvements on machines for levigating or grinding colours 

 used in the various branches of painting, which machinery may be 

 worked by any suitable power, and is applicable to other useful pur- 

 poses. — Jan. 19. 



J. Russel, Wednesbury, Staffordshire, gas-tube manufacturer, for his 

 improvement in the manufacture of tubes for gas and other purposes.-— 

 Jan. 19. 



S. Broadmeadow, Abergavenny, Monmouthshire, civil engineer, for 

 his improved method of manufacturing and purifying inflammable gases 

 by the admission and admixture of atmospheric air. — Jan. 19. 



H. Fletcher, Walsall, Staffordshire, saddler's ironmonger, for certain 

 improvements in tanning hides and other skins. — Jan. 19. 



T. Bewley, Mount Rath, in Queen's County, Ireland, cotton manu- 

 facturer, for certain improvements in wheeled carriages. — Jan. 24. 



J. Heathcoat, Tiverton, Devonshire, lace manufacturer, for certain 

 improvements in the method of figuring or ornamenting various kinds 

 of goods manufactured from silk, cotton, or flax. — Jan. 24. 



J. Jones, Leeds, Yorkshire, brush manufacturer, for certain improve- 

 ments in machinery and instruments for dressing and cleansing woollen, 

 cotton, linen, silk, and other cloths or fabrics. — Jan. 27. 



Sir W. Congreve, Bart. Cecil-street, Strand, for his improved method 

 of stamping. — Feb. 7. 



