TO PHOTOGRAPHERS, DAGUERREOTYPISTS, &c.-- Instantaneous Collodion (or Collodio-Iodide Silver). Solution for Iodizing Collodion. Pyrogallic, Gallic, and Glacial Acetic Acids, and every Pure Chemical required in the Practice of Photography, prepared by WILLIAM BOLTON, Operative and Photographic Chemist, 146. Holborn Bars. Wholesale Dealer in every kind of Photographic Papers, Lenses, Cameras, and Apparatus, and Importer of French and German Lenses, &c. Catalogues by Post on receipt of Two Postage Stamps. Sets of Apparatus from Three Guineas. * * * * * 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. Albumenized paper, for printing from glass or paper negatives, giving a minuteness of detail unattained by any other method, 5s. per Quire. Waxed and Iodized Papers of tried quality. Instruction in the Processes. BLAND & LONG, Opticians and Photographical Instrument Makers, and Operative Chemists, 153. Fleet Street, London. *** Catalogues sent on application. * * * * * THE SIGHT preserved by the Use of SPECTACLES adapted to suit every variety of Vision by means of SMEE'S OPTOMETER, which effectually prevents Injury to the Eyes from the selection of Improper Glasses, and is extensively employed by BLAND & LONG, Opticians, 153. Fleet Street, London. * * * * * {484} IMPERIAL LIFE INSURANCE COMPANY. 1. OLD BROAD STREET, LONDON. Instituted 1820. ---- SAMUEL HIBBERT, ESQ., _Chairman_. WILLIAM R. ROBINSON, ESQ., _Deputy-Chairman_. ---- The SCALE OF PREMIUMS adopted by this Office will be found of a very moderate character, but at the same time quite adequate to the risk incurred. FOUR-FIFTHS, or 80 per cent. of the Profits, are assigned to Policies _every fifth year_, and may be applied to increase the sum insured, to an immediate payment in cash, or to the reduction and ultimate extinction of future Premiums. ONE-THIRD of the Premium on Insurances of 500l. and upwards, for the whole term of life, may remain as a debt upon the Policy, to be paid off at convenience; or the Directors will lend sums of 50l. and upwards, on the security of Policies effected with this Company for the whole term of life, when they have acquired an adequate value. SECURITY.--Those who effect Insurances with this Company are protected by its Subscribed Capital of 750,000l., of which nearly 140,000l. is invested, from the risk incurred by Members of Mutual Societies. The satisfactory financial condition of the Company, exclusive of the Subscribed and Invested Capital, will be seen by the following Statement: