The New Photo-Miniature Volume 14, PT. 2, Nos. 163-168 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 Excerpt: ... the particular brand of paper in use, following the makers' formulas.. The development of the large sheets of Print exp0Sed paper, each sheet giving two to six prints, does not present any special difficulty. The exposures have been standardized to give uniform prints in a known developer, and the latter has been carefully compounded according to the formulas already given. The operation of development, therefore, becomes more or less mechanical, a matter of careful timing and dexterity in the handling of large sheets of paper in the solutions. Naturally the handling is easier and less liable to develop trouble when the heavy-weight papers are used, as compared with papers of normal weight. As a first precaution the operator will Preparation take care that the temperature of his developing, acid, and fixing solutions is as near uniform as possible. Then he will see to it that a plentiful supply of fresh solutions is at hand for all his needs. And, finally, he will supply himself and his assistants with rubber gloves, for the protection of the hands and greater convenience in working. A word about the protection of the the Hands hands may be profitable before we go further. Efficiency in working with chemical solutions on a large scale depends largely upon keeping the hands in good condition. Constant immersion of the hands in alkaline and acid waters causes the skin of the fingers to crack or split, giving rise to painful sores, causing great discomfort and tending to inefficiency in producing good results. It is, therefore, well worth while to look after one's hands, and here an ounce of prevention is worth a pound of cure. Cheap rubber gloves are doubly Gloves expensive; get the thick, substantial variety, even if they cost a trifle more. Some expert dev...