*** Policies are now issued Free of Stamp Duty; and attention is invited to the circumstance that Premiums payable for Life Assurance are now allowed as a Deduction from Income in the Returns for Income Tax. GEORGE GRANT, Resident Sec. London Branch, 12. Moorgate Street. * * * * * IMPROVEMENT IN COLLODION.--J. B. HOCKIN & CO., Chemists, 289. Strand, have, by an improved mode of Iodizing, succeeded in producing a Collodion equal, they may say superior, in sensitiveness and density of Negative, to any other hitherto published; without diminishing the keeping properties and appreciation of half-tint for which their manufacture has been esteemed. Apparatus, pure Chemicals, and all the requirements for the practice of Photography. Instruction in the Art. THE COLLODION AND POSITIVE PAPER PROCESS. By J. B. HOCKIN. Price 1s., per Post, 1s. 2d. * * * * * PHOTOGRAPHIC INSTITUTION. THE EXHIBITION OF PHOTOGRAPHS, by the most eminent English and Continental Artists, is OPEN DAILY from Ten till Five. Free Admission. £ s. d. A Portrait by Mr. Talbot's Patent Process 1 1 0 Additional Copies (each) 0 5 0 A Coloured Portrait, highly finished (small size) 3 3 0 A Coloured Portrait, highly finished (larger size) 5 5 0 Miniatures, Oil Paintings, Water-Colour, and Chalk Drawings, Photographed and Coloured in imitation of the Originals. Views of Country Mansions, Churches, &c., taken at a short notice. Cameras, Lenses, and all the necessary Photographic Apparatus and Chemicals, are supplied, tested, and guaranteed. Gratuitous Instruction is given to Purchasers of Sets of Apparatus. PHOTOGRAPHIC INSTITUTION, 168. New Bond Street. * * * * * PHOTOGRAPHIC SOCIETY.--THE EXHIBITION OF PHOTOGRAPHS AND DAGUERREOTYPES is now open at the Gallery of the Society of British Artists, Suffolk Street, Pall Mall, in the Morning from 10 A.M. to half-past 4 P.M., admission 1s.; and in the Evening from 7 to 10 P.M., admission 3d. Catalogue 6d. * * * * * COLLODION PORTRAITS AND VIEWS obtained with the greatest ease and certainty by using BLAND & LONG'S preparation of Soluble Cotton; certainty and uniformity of action over a lengthened period, combined with the most faithful rendering of the half-tones, constitute this a most valuable agent in the hands of the photographer. Albumenised paper, for printing from glass or paper negatives, giving a minuteness of detail unattained by any other method, 3s. per Quire. Waxed and Iodized Papers of tried quality. Instruction in the Processes. BLAND & LONG, Opticians and Photographical Instrument Makers, and Operation Chemists, 153. Fleet Street, London. *** Catalogues sent on application.