Abstract
SOME idea of the scope of this volume may be gathered from the fact that about ninety of its pages, which are not very large, are devoted more especially to photo-micrography, and rather more than thirty to photography—that is, developing and printing. The author takes it for “granted that the reader is already familiar with the use of the microscope,” and also presumably that he is an amateur photographer, and seeks to show how the two may be brought together without the need for expensive appliances, and furnish results which, “though not perfect, are good arid acceptable for nearly all purposes.” He succeeds not only by precept but also by example, giving twenty-nine good reproductions of photo-micrographs taken by the simple means that he describes, using only objectives supplied with students' microscopes. These examples are illustrative of the methods dealt with in the text, and include magnifications from 2 up to 4000 diameters, the use of transmitted light, reflected light, a combination of the two, dark ground illumination, the use of polarised light, oblique illumination, illumination by flashlight, multiple-colour illumination, and a photograph on an auto-chrome plate. They are of excellent quality, including even a photograph of Bacillus subtilis, × 1000. But the Amphipleura pellucida, × 4000, shows that such simple methods will not serve for an extreme test, although taken by means of a one-twelfth immersion lens of 1·4 N.A. and an oiled-on condenser. By the way, such an objective and condenser scarcely come within the range of “students'” microscopical apparatus. In giving “pre-war” prices for chemicals, perhaps the author expresses his faith in an early return to peace conditions.
Elementary Photo-micrography.
By W. Bagshaw. Third edition. Pp. 143. (London: Iliffe and Sons, Ltd., 1915.) Price 2s. 6d. net.
Article PDF
Rights and permissions
About this article
Cite this article
Elementary Photo-micrography . Nature 96, 143 (1915). https://doi.org/10.1038/096143a0
Issue Date:
DOI: https://doi.org/10.1038/096143a0