London: GEORGE BELL, Fleet Street.
Now ready, royal 12mo., pp. 430., with a Plan showing the localities of the London Libraries, and ground plan of the Libraries in the British Museum, cloth, 5s.
HANDBOOK TO THE LIBRARY OF THE BRITISH MUSEUM:
Containing a Brief History of its Formation, and of the various Collections of which it is composed: Descriptions of the Catalogues in present use; Classed Lists of the Manuscripts, &c.; and a variety of Information indispensable for the "Readers" at that Institution. With some Account of the Principal Libraries in London. By RICHARD SIMS, of the Department of Manuscripts; Compiler of the "Index to the Heralds' Visitations."
London: JOHN RUSSELL SMITH, 36. Soho Square.
XYLO-IODIDE OF SILVER, exclusively used at all the Photographic Establishments.—The superiority of this preparation is now universally acknowledged. Testimonials from the best Photographers and principal scientific men of the day, warrant the assertion, that hitherto no preparation has been discovered which produces uniformly such perfect pictures, combined with the greatest rapidity of action. In all cases where a quantity is required, the two solutions may be had at Wholesale price in separate Bottles, in which state it may be kept for years, and Exported to any Climate. Full instructions for use.
Caution.—Each Bottle is Stamped with a Red Label bearing my name, RICHARD W. THOMAS, Chemist, 10. Pall Mall, to counterfeit which is felony.