Handbook of photomicrography
A 1913 London handbook on photomicrography by H. Lloyd Hind and W. Brough Randles, published by G. Routledge & Sons, aimed at practitioners photographing specimens through the microscope. The pictures are line engravings of optical parts: a sectioned objective lens barrel with a lettered label, a diagram of a lens train above a stage and condenser, a cross-section of a cylindrical fitting with internal spiral threads, and a dense field of cellular specimens with curved worm-like forms, offering designers schematic, technical line work with strong hatching and clear section views.
