Abstract
THIS almanac continues to occupy the unique position that its editor has earned for it, and to have lived down all its previous contemporaries. Its general character is too well known to need description, and is maintained in the present volume, but a few welcome changes have been introduced. The most notable of these is the replacement of the tables of chemical formulae by a series of short articles dealing with the properties of the commonest of the chemical substances used in photo graphic processes. These will be found of real practical utility, though they need a little revision. One might, for example, be led into error by the statement that iodine is insoluble in water or by the representation of oxalic acid as if its crystals were anhydrous. There does not seem any valid reason for calling ammonium, potassium, and sodium salts as ammonium, “potass,” and soda salts respectively, and when uniformity means simplicity and offers no disadvantages, it is always desirable. The editor as usual contributes a long article, this year on “The Plain Facts of Lenses,” which is eminently practical and easily understandable even by non-technical photographers. There is also a second article by Mr. T. L. J. Bentley on how to get the best results with the very small cameras that are now in vogue. It appears that 3¼ in. × 2¼ in. is by far the most popular size as compared with either larger or smaller sizes of spools of roll-film.
The British Journal Photographic Almanac and Photographer's Daily Companion.
George E.
Brown
with which is incorporated "The Year Book of Photography and Amateurs' Guide" and "The Photographic Annual", 1925. Edited by. Sixty-fourth issue. Pp. 816. (London: H. Greenwood and Co., Ltd., 1925.) Paper, 2s. net; cloth, 3s. net.
Article PDF
Rights and permissions
About this article
Cite this article
The British Journal Photographic Almanac and Photographer's Daily Companion . Nature 115, 259 (1925). https://doi.org/10.1038/115259a0
Issue Date:
DOI: https://doi.org/10.1038/115259a0