Abstract
IN twenty-three short chapters and an introduction the author has provided a general guide for beginners in photography similar to the numerous small guides that we have in English, but differing from them in being more fundamental and less detailed in the matter of manipulation and precautions. The difference may be due to the more general diffusion of elementary scientific knowledge in Germany than in this country. Formulae for the preparation of various printing papers and plates are given, as well as instructions for their use, so that the volume is in no sense a mere collection of instructions for the manipulation of commercial products. This being as it is and the volume so small, it is interesting to note the selection that the author makes from the innumerable alternatives now o available. The formulæ for developers are in the following order:—Ferrous oxalate, pyro-soda, pyrocatechin, pyrocatechin without sulphite, hydroquinone, and metol-hydroquinone.
Die Photographie.
By W. Zimmermann. Pp. iv + 164. (Leipzig: Quelle und Meyer, n.d.) Price 1.80 marks.
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Die Photographie . Nature 81, 274 (1909). https://doi.org/10.1038/081274a0
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DOI: https://doi.org/10.1038/081274a0