BSTJ 3: 1. January 1924: Photomicrography and Technical Microscopy in Its Application to Telephone Apparatus. (Lucas, Francis F.) (1924)
leaf 43
PHOTOMICROGRAPHY AND TECHNICAL MICROSCOPY 130 … Fig. H. Manila hemp rope is used extensively in telephone work and the fiber from old rope is used in paper for cable insulation which finds its way into the plant. Microscopically the fiber is identified by certain characteristics, prominent among which arc the silicified tabular cells known as…
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
Internet Archive · Public domain (published before 1931). Free to use for anything.