1824.] New Patents. 397 



Narrative of a Voyage of Discovery in the Interior of Africa, from 

 the Western Coast to the River Niger in 1818, 1819, 1820, and 1821. 

 By Brevet Major Gray. 8vo. 



Journal of a Tour in Asia Minor. By W. Martin Leake, FRS. 8vo. 



Lisbon in the Years 1821, 1822, and 1823. By Marianne Baillie. 

 2 vols, small 8vo. 



JUST PUBLISHED. 



Bostock's Elementary System of Physiology. 8vo. 15s. 



The Zoological Journal, No. I. 10s. (To be continued Quarterly.) 



The History of Ancient and Modern Wines. With Embellishments 

 from the Antique. 4to. 21. 2s. With the Vignettes on India paper, 

 3/. 3s. 



Selection from De Humboldt, relating to the Climate, Productions, 

 Mines, &c. of Mexico. By John Taylor, Treas. Geol. Soc. 8vo. 12s. 



Travels in Brazil, in the Years 1S17, 1S18, 1819, and 1820, under- 

 taken by the Command of the King of Bavaria. By Drs. J. Von Spix, 

 and C. Von Martins. Vols. I. and II. 8vo. 1/. is. 



Critical Researches in Philology and Geography. 8vo. 8s. 



The Perennial Calendar and Companion to the Almanac, as con- 

 nected with History, Botany, Natural History, Astronomy, &c. &c. 

 By Thomas Forster, FLS. &c. 8vo. 18s. 



Naval Battles from 1744 to 1814, critically reviewed and illustrated. 

 By C. Ekins, Rear-Adm. CB. &c. 4to. with 79 Plates and numerous 

 Diagrams. 31. 3s. 



Article XVI. 



NEW PATENTS. 



J. Arrowsmith, Esq. Air-street, Piccadilly, for an improved mode of 

 publicly exhibiting pictures or painted scenery of every description, 

 and of distributing or directing the day-light upon or through them so 

 as to produce many beautiful effects of light and shade, which he deno- 

 minates Diorama. — Feb. 10. 



R. Lloyd, Strand, hatter, and J. Rowbotham, of Great Surrey-street, 

 Blackfriar's-road, Surrey, hat-manufacturer, for their having invented 

 and brought to perfection a hat upon a new construction which will be 

 of great public utility. — Feb. 19. 



H. Adcock, Summer Hill Terrace, Birmingham, gilt toy manufac- 

 turer, for his improvement in making waistbands. — Feb. 19. 



W. Church, Esq. Birmingham, Warwickshire, for certain improve- 

 ments in machinery for printing. — Feb. 19. 



A. Applegath, Duke-street, Stamford-street, Blackfriars, Surrey, 

 printer, for certain improvements in machines for printing. — Feb. 19. 



Rev. M. Isaacs, Hounsditch, for certain improvements in the con- 

 struction of machinery, which, when kept in motion by any suitable 

 power or weight, is applicable to obviate concussion by means of pre- 

 venting counteraction, and by which the friction is converted into an 

 useful power for propelling carriages on land, vessels on water, and 

 giving motion to other machinery. — Feb. 19. 



