G.--No. 27

List of Photographic Apparatus and Chemicals required for taking Negatives, and printing Copies and Seductions of Plans, and the probable quantity of Chemicals which will be necessary for one year, together with the names of the persons from whom these articles can be purchased, and the probable cost. J. H. Dallmeyer, 19, Bloomsbury Street, London. £ s. d. 1 Camera for plates, 16x 16 inches, each £30 ... ... ... ... ... 30 0 0 1 Camera Stand, each £5 10s. ... ... ... ... ... ... ... 510 0 1 Lens, each £18 ... ... ... ... ... ... ... ... 18 0 0 1 Set of Frame Work, each £16 ... ... ... ... ... ... ... 16 0 0 1 Mahogany Board, 50x32 inches, each £3 ss. ... ... ... ... ... 3 5 0 2 Printing-Frames for plates, 16x16 inches, each £1 10s. ... ... ... ... 3 0 0 £75 15 0 Chance Brothers, Birmingham. £ s. d. 12 Doz. Glass Plates, 16 xl 6 inches, per doz.,£l 15s. ... ... ... ... 21 0 0 6 Doz. Glass Plates, 11 Xl 4 inches, per doz., £1 ss. ... ... ... ... 7 10 0 6 Doz. Glass Plates, 10i X 8 inches, per doz., 15a. ... ... ■ ... ... 4 10 0 £33 00 H. Bumpus, 6, Holborn Bars, London. £ s. d. One copy of Hardwick's Photography. ... ... ... 069 L. P. Casella, 51, Hatton Gardens, London. £ s. d. 2 Thermometers ... ... ... ... ... ... 1 10 0 B. W. Thomas, 10, Pall Mall, London. £ s. d 2 Baths for Plates, in mahogany cases, 16 xl 6 inches, each 80s. ... ... 8 0 0 2 Developing Dishes (porcelain), 19 x 19, each 305.. ... ... ... 3 0 0 Graduated Glasses, 2 20oz. at 2s. 6d., 2 lOoz. at 25., 2 6oz. at Is. 3d., 2 4oz. at Is. Id. 0 18 8 6 Glass Rods, each 3d. ... ... ... ... ... ... 0 16 6 Glass Funnels, each lOd. ... ... ... ... ... 0 5 0 1 Filtering Stand ... ... ... ... ... ... 0 10 6 1 Pneumatic Plateholder ... ... ... ... ... 0 3 6 4 Delph Jugs (quart), each 2s. ... ... ... ... ... 0 8 0 2 Porcelain Dishes, 20 x 20, each 20s. ... ... ... ... 200 2 do. do. 20 x 16, each 12s. ... ... ... ... 14 0 2 Pestles and Mortars (Wedgwood), each 4s. 9d. ... ... ... 0 9 6 1 Scales aud Weights (apothecaries set) ... ... ... ... 1 16 0 1 Specific Gravity Bottle ... ... .. ... ... 0 5 0 1 Glass Spirit Lamp ... ... ... ... ... ... 0 5 0 1 Silver Metre and case ... ... ... ... ... ... 0 3 6 4 Glass Dippers, each Is. 6d. ... ... ... ... ... 0 6 0 1 Developing Stand ... ... ... ... ... ... 076 1 Weighing Machine, with weights ... ... ... ... ... 110 2 Sponges, each 10s. ... ... ... ... ... ... 100 6 yards of Diaper for Towels, at Is. 6d. per yard ... ... ... 090 5 pints of Alcohol —Absolute, at ss. per pint ... ... ... ... 15 0 15 pints do. Common, at 3s. 6d. per pint ... ... ... 212 6 3 lbs. Acid, Citric, at 2s. Bd. per lb. ... ... ... ... 0 8 0 10 pints Acid, Glacial Acetic, at 4s. per pint ... ... ... ... 200 5 ozs. Acid, Pyrogallic, at 4s. per oz. ... ... ... ... 100 30 pints Ammonium, Hydrosulph., at 2s. per pint ... ... ... 300 10 pints do. Liquor, at Is per pint ... ... ... ... 010 0 40 pints Collodion, at 10s. per pint ... ... ... ... 20 0 0 5 lbs. Cotton Wool, at 3s. per lb. ... ... ... ... ... 015 0 10 lbs. Gelatine (Nelson's best patent fine cut), at 4s. 6d. per lb. ... ... 2 5 0 2 ozs. Gold Terchloride, at 645. per oz. ... ... ... ... 680 10 lbs. Iron Proto-sulphate, at 6d. per lb. ... ... ... ... 050 2 lbs. Kaolin, at Bd. per lb. ... ... ... ... ... 0 10 6 lbs. Mercury, Bi-chloride, at 4s. per lb. ... ... ... ... 14 0 15 quires Eesinized Paper, at Bs. per quire ... ... ... ... 6 0 0 5 quires Filtering Paper, at Is. per quire ... ... ... ... 050 1 ream Bank Post Paper ... ... ... ...' ... -4 0 0 10 books Litmus Paper, at 2d. per book ... ... ... ... 0 10 -10 lbs. Potassium Bi-ehromate, at Is. 6d. per lb. ... ... ... ... 015 8 6 lbs. do. Cyanide, at 3s. 6d. per lb. ... ... ... ... 110 5 ozs. do. lodide, at Is. per oz. ... ... ... ... 050 6 lbs. finely prepared Tripoli, at 4s. per lb. ... ... ... ... 14 0 5 pints Rectified Ether, at 6s. per pint ... ... ... ... 1 10 0 60 ozs. Silver, Nitrate of (fused), at 3s. 9d. per oz. ... ... ... 11 5 0 60 ozs. do. do. (common), at 3s. sd. ... ... ... ... 10 5 0 2

5

OF THE USE OF PHOTO-ZINCOGRAPHY.