The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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Mounting
at the edges. To make self-adhesive mounts, a thick mucilage of gum tragacanth may be spread on the card. A damp print rolled against such a mount adheres firmly.
Mounting is the operation of causing prints to adhere to some substance, such as card, cloth, wood, or glass, either for ornament or the better protection of the print itself. As the mounting of a print is in many cases the making of it, great attention should be paid by amateurs to this subject. The following points should be chiefly regarded : - The mount should be of colour and size to suit the taste of the operator, rather than to meet any real or supposed convention. As the difficulty of placing prints equidistant from the margin is one likely to be met with by every amateur, the following hints may be found useful: - After applying the mountant, lay the print face down-wards upon a mount exactly similar to that upon which it is desired'to mount the print, shift the print about till it is exactly in the centre ; now lay on top of the print another mount exactly the same size, making the edges of the two mounts coincide : rub the hand gently over the top mount, when it may be lifted up with the print in position. Another ingenious method, which is recommended by Mr. T. C. Hep worth, is as follows: - Procure a piece of stout cardboard - a mount will do - 22 by 15 ; draw diagonals from corner to corner, ac, bd, in sketch (Fig. 100), cutting each other in centre, and on these lines are drawn rectangular figures of the usual dimensions of the trimmed prints. For instance, the smallest may be 4 by 3 or 3 by 3, the nextand so on. When
it is desired to mount a print, place it face downwards upon this gauge, when it will be found that it will coincide with certain of the lines; note the number of figure, remove the print, apply the motmtant, and replace upon the lines it covered before ; then reverse upon it the mount which should coincide with some other set of lines ; proceed as in the above case, lifting the mount and its adhering print. A very convenient little instru-ment for those who do not possess either a burnishing or rolling machine is an india-rubber roller squeegee, which will cause good contact between the prints and mounts. For those who possess a copying press, sheets of zinc or tin may be placed between the mounted prints, and great pressure applied in the
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