Le microscope son emploi et ses applications ..
Le microscope, son emploi et ses applications is an 1876 Paris microscopy manual by J. Pelletan, published by G. Masson for students and practitioners of the instrument. Its pictures are fine line engravings of plant tissue cells, a plant bud cross-section with labelled parts, a ciliate protozoan, and a brass microscope with its stand; a designer could draw on their precise hairline contours, labelled diagram style, and tonal hatching.
