This section is from the book "Complete Self-Instructing Library Of Practical Photography", by J. B. Schriever. Also available from Amazon: Complete Self-Instructing Library Of Practical Photography.
Royal Bromide Paper. Sepia-toned enlargements made through bolting cloth on Royal Bromide paper have the softness and beauty of rare old etchings. Owing to the broad effects we do not recommend this paper for pictures smaller than 8x10 inches.
Royal Bromide is not intended for use when vignetted prints with white backgrounds are wanted, for it is coated on paper having a delicate cream tint, the yellowish cast in the high-lights harmonizing beautifully with dark backgrounds, but not adapted to vignettes. This is made in two varieties, rough and smooth.
Velvet Bromide. This product is suited to negatives having broad shadows, the slight sheen of the semi-gloss surface giving the enlargements from such negatives a life and brilliancy which is highly pleasing. Velvet bromide is especially suited to enlargements from amateur or landscape negatives.
Keeping Qualities Of Bromide Papers. Bromide paper has exceptional keeping qualities, its life being about the length of any of the gaslight papers. It should be kept in a dry, well ventilated cupboard or drawer.
Purchasing Paper. For the convenience of consumers these papers are put up in all standard sizes, and for the amateur, or the photographer who is using small quantities we would advise the purchase of these cut sizes. They are put up a dozen in a package, the smallest of which is 2 1/2 x 2 1/2 and the largest 40 x 72 inches. For those who are using large quantities we would advise purchasing in rolls. They are put up in 10-ft. lengths 24 1/2 inches wide, and in 10-yd. lengths, of four different widths,
When ordering always specify whether you want the "hard" or "soft."
Sensitiveness Of Bromide Paper. While Bromide paper is considerably more sensitive than gaslight or developing papers, such as Velox, it is only about half as sensitive as a rapid dry plate; therefore it can be handled in a fairly strong yellow or ruby light, but never in extremely weak daylight, as this would fog it. Daylight coming through two thicknesses of postoffice paper is a perfectly safe light to work by. When artificial light, such as gas, or kerosene, is used, one thickness of postoffice paper over the light will be sufficient and perfectly safe.
588a. Enlargements on Special Velox Paper. - Very excellent results are obtained by enlarging on special velox. This paper, being much slower than the bromide, requires about fifty to sixty times the exposure of that necessary for bromide paper.
588b. Enlargements on Nepera Paper. - Nepera is a developing paper, and, like the velox, is much slower in speed than the bromide paper, but it possesses qualities that recommend it particularly to the professional making high-class portrait enlargements. Nepera is unequalled as a paper for enlargements from professional portrait negatives, as it fully preserves all the detail and delicacies of gradation of the original negative. Royal Nepera produces exceedingly rich sepia tones when redeveloped. The great variety of surfaces and grades of the Eastman permanent Bromide and Nepera papers enable the photographer not only to duplicate any effect to be had in contact printing, but also in many instances to greatly improve the quality by means of simple manipulations during exposure and development. Enlargements from good negatives made on the proper grade of paper will equal in every respect a contact print made from an enlarged negative, and with a great saving of time and money. In fact, many photographers prefer making all their negatives of uniform size, and when they receive orders for large prints, enlarge from the small negatives with equally satisfactory results.
Hypo Sulphite of Soda .........................
When thoroughly dissolved, add 6 ozs. of the hardening solution, prepared as follows:
Sulphite of Soda (desiccated)....................
Commercial Acetic Acid ...............................
Or 1 1/2 ozs. Glacial Acetic Acid
Powdered Alum .....................
Prints when developed should be quickly rinsed and immersed in the hypo bath. A freshly made acid hypo bath will fix prints in twelve minutes.