Sir Knight Robert Hunter asks if the Premo B Camera, with Rochester Optical Company's single-view lens, is a good hand-camera for an amateur. The Premo is an excellent camera, and the lens mentioned is a good one. This camera is fitted either for films or glass plates.
Sir Knight Frederick Clapp sends a photograph of some greenhouses taken from a kite sent up with a camera attached to it, and promises to send full directions of the manner of taking them. They are quite interesting, and Sir Frederick wants to know if any of the members of the club have ever tried the experiment.
Sir Knight W. D. Campbell asks how long prints made on solio paper and toned in Eastman's combined bath will keep. Prints made on this paper, if fixed and well washed, should keep indefinitely. If after toning they are put for three minutes into a fixing-bath of 1 oz. hypo, to 10 oz. water, it will tend to make them more permanent, as the combined bath does not always fix them enough. Our correspondent is the first member of the club to take advantage of the photographic print exchange outlined in No. 885.
Loe Olds asks if one can purchase a good camera for ten dollars, and wishes the name of some reliable firm, and if one taking a picture 3½ by 4½ would be large enough. A good camera may be had for ten dollars, but would advise getting one which will take a picture 4 by 5 in size. Write the Eastman Company, Rochester, N. Y.; Rochester Optical Company, Rochester, N. Y.; Manhattan Optical Company, or Scovill, Adams Company, New York city, for catalogues.
M. Foster asks for a formula for platino paper; if platino and platinum are the same; a formula for platinum toning-solution; if Rives paper is salted; and if it is necessary to prepare blue-print paper on salted paper. Do not try to make platino paper, as it is a long process, and not always successful. It is cheaper in the end to buy it. Try some of the simpler processes for sensitizing paper. Will send the formula if you wish to try platinum. Platino is a commercial term applied to paper sensitized with platinum. Rives paper is raw photographic paper. Blue prints do not need to be made on salted paper.
L. K. asks what is the matter with his negatives which show, after a few months, spots on the film. From the description of the spots, they are doubtless due to a poor fixing-bath. Will L. K. please give his formula for fixing?
Percy Meredith Reese, Jun., 1210 Mount Royal Ave., Baltimore, Md.; Lesley Ashburner, Media, Pa.; Harry Chase, 175 Summer St., Malden, Mass.; Dwight N. Foster, 35 Pleasant St., Dorchester, Mass.; John N. Prothero, Du Bois, Pa.; John Norton Atkins, Bayonne City, N. J.; J. R. Sixx, 95 Broadway, Paterson, N. J.; R. T. Pobbs, Swedeland, Pa.; L. P. Dodge, 71 High St., Newburyport, Mass; Foster Hartwell, 629 Third Ave., Lansingburg, N. Y.; S. F. Macquaide, 46 Mechlin St., Germantown, Pa.; Vincent Aules, New Dorp, Staten Island; E. V. Bragdon, 87 West Thirty-second St., Bayonne, N. J.; Ernest T. Selig, Lawrence, Kan.; George L. Coleman, 114 Van Buren St., Dayton, O.—wish to be enrolled as members of the Camera Club.
Sir Knight John Norton Atkins asks if the glycerine solution used for keeping films from curling can be used more than once; if the accelerator mentioned in No. 822 may be used with eiko-cum-hydro developer; and if the piece of drawing-paper enclosed in his letter could be used for sensitizing. The glycerine preparation may be used as long as it is clear. The accelerator may be used with the developer mentioned. The sample of drawing-paper did not reach the editor, but if it is pure paper, free from chemicals, it may be used for plain paper. Whatman's drawing-paper is considered pure.
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