BSTJ 3: 1. January 1924: Photomicrography and Technical Microscopy in Its Application to Telephone Apparatus. (Lucas, Francis F.) (1924)
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Fig. L. Direct autochrome color reproduction of a stained specimen of Southern Yellow Pine showing sap-stain fungus mycelium. Magnification 100 X. This particular fungus is harmful to the extent that it causes a discoloration of the sapwood, which assumes a blue color in place of the usual… … Fig. M. Direct color photomicrography by the autochrome process of a radial section of mahogany wood. Magnification 50 X. Mahogany is one of the best of cabinet woods and finds wide application in the telephone plant.
Specimen · Photomicrography · Technical · Eyepiece · Objective · Magnification · Light · Microscopy · Microscope · Color · Arc lamp · Illuminating train · Technical microscopy · Polarized light · Bell system · Numerical aperture · Resolving power · System technical · Technical journal · Automatic arc
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