The microscope : its construction and management : including technique, photo-micrography, and the past and future of the microscope (1893)
Heurck, Henri van, 1838-1909 · London : C. Lockwood ; New York : D. Van Nostrand Co. · leaf 141
SIMPLE MICROSCOPES. … Lastly, a binocular apparatus for dis-section (fig. 116), which we examined alittle time ago, and by means of whichdissections can be seen very vividly inrelief, also costs £2 8s. This optician also sells the doubletsseparately. The price is 5s. for thoseof 20 to 5 millimetres, focal length, and8s.…
Microscopy
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.