_We have to apologise to many of our Shakspearian correspondents for the delay which has taken place in the insertion of their communications._ A. E. B. _will perceive that we have complied with his request in substituting for immediate publication the paper he sent this week, instead of one by him which has been in type for two or three weeks._ _The coincident communications from two correspondents on Falstaff's death_,--MR. SINGER_'s valuable emendation of a passage in_ Romeo and Juliet,--_and_ MR. BLINK_'s and_ MR. RAWLINSON_'s respective communications, shall have our earliest attention._ _We are also compelled to postpone our usual replies to Photographic Querists._ MR. MERRITT_'s Photographic specimens are very satisfactory. There can be no doubt that, with perseverance, he will accomplish everything that can be desired in this useful and pleasing art._ "NOTES AND QUERIES" _is published at noon on Friday, so that the Country Booksellers may receive Copies in that night's parcels, and deliver them to their Subscribers on the Saturday._ {611} * * * * * Just published, price 1s., free by Post 1s. 4d., THE WAXED-PAPER PHOTOGRAPHIC PROCESS of GUSTAVE LE GRAY'S NEW EDITION. Translated from the French. Sole Agents in the United Kingdom for VOIGHTLANDER & SON'S celebrated Lenses for Portraits and Views. General Depot for Turner's, Whatman's Canson Freres, La Croix, and other Talbotype Papers. Pure Photographic Chemicals. Instructions and Specimens in every Branch of the Art. GEORGE KNIGHT & SONS, Foster Lane, London. * * * * * PHOTOGRAPHY.--Collodion (Iodized with the Ammonio-Iodide of Silver).--J. B. HOCKIN & CO., Chemists, 289. Strand, were the first in England who published the application of this agent (see _Athenaeum_, Aug. 14th). Their Collodion (price 9d. per oz.) retains its extraordinary sensitiveness, tenacity, and colour unimpaired for months; it may be exported to any climate, and the Iodizing Compound mixed as required. J. B. HOCKIN & CO. manufacture PURE CHEMICALS and all APPARATUS with the latest Improvements adapted for all the Photographic and Daguerreotype processes. Cameras for Developing in the open Country. GLASS BATHS adapted to any Camera. Lenses from the best Makers. Waxed and Iodized Papers, &c. * * * * * PHOTOGRAPHIC APPARATUS MANUFACTORY, Charlotte Terrace, Barnsbury Road, Islington. T. OTTEWILL (from Horne & Co.'s) begs most respectfully to call the attention of Gentlemen, Tourists, and Photographers, to the superiority of his newly registered DOUBLE-BODIED FOLDING CAMERAS, possessing the efficiency and ready adjustment of the Sliding Camera, with the portability and convenience of the Folding Ditto. Every description of Apparatus to order. * * * * *