PHOTOGRAPHY.--HORNE & CO.'S Iodized Collodion, for obtaining Instantaneous Views, and Portraits in from three to thirty seconds, according to light. Portraits obtained by the above, for delicacy of detail rival the choicest Daguerreotypes, specimens of which may be seen at their Establishment. Also every description of Apparatus, Chemicals, &c. &c. used in this beautiful Art.--123. and 121. Newgate Street. * * * * * PHOTOGRAPHIC CAMERAS. OTTEWILL'S REGISTERED DOUBLE-BODIED FOLDING CAMERA, is superior to every other form of Camera, for the Photographic Tourist, from its capability of Elongation or Contraction to any Focal Adjustment, its extreme Portability, and its adaptation for taking either Views or Portraits. Every Description of Camera, or Slides, Tripod Stands, Printing Frames, &c. may be obtained at his MANUFACTORY, Charlotte Terrace, Barnsbury Road, Islington. New Inventions, Models, &c., made to order or from Drawings. * * * * * WANTED, for the Ladies' Institute, 83. Regent Street, Quadrant, LADIES of taste for fancy work,--by paying 21s. will be received as members, and taught the new style of velvet wool work, which is acquired in a few easy lessons. Each lady will be guaranteed constant employment and ready cash payment for her work. Apply personally to Mrs. Thoughey. N.B. Ladies taught by letter at any distance from London. * * * * * INDIGESTION, CONSTIPATION, NERVOUSNESS, &c.--BARRY, DU BARRY & CO.'S HEALTH-RESTORING FOOD for INVALIDS and INFANTS. THE REVALENTA ARABICA FOOD, the only natural, pleasant, and effectual remedy (without medicine, purging, inconvenience, or expense, as it saves fifty times its cost in other remedies) for nervous, stomachic, intestinal, liver and bilious complaints, however deeply rooted, dyspepsia (indigestion), habitual constipation, diarrhoea, acidity, heartburn, flatulency, oppression, distension, palpitation, eruption of the skin, rheumatism, gout, dropsy, sickness at the stomach during pregnancy, at sea, and under all other circumstances, debility in the aged as well as infants, fits, spasms, cramps, paralysis, &c. _A few out of 50,000 Cures_:-- Cure, No. 71. of dyspepsia; from the Right Hon. the Lord Stuart de Decies:--"I have derived considerable benefit from your Revalenta Arabica Food, and consider it due to yourselves and the public to authorise the publication of these lines.--STUART DE DECIES." Cure, No. 49,832:--"Fifty years' indescribable agony from dyspepsia, nervousness, asthma, cough, constipation, flatulency, spasms, sickness at the stomach, and vomitings have been removed by Du Barry's excellent food.--MARIA JOLLY, Wortham Ling, near Diss, Norfolk."