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 334
the top in a brass shank. This is split into fourparts, in the middle of which the needle is inserted, and held thereby means of a screw, the outside of the brass shank having a thread(fig. 188). The needles used should be as fine as possible. Generally Nos. nand 12 are employed. USE OF MICROTOMES.… … Scalpels (fig. 189) are needles, the ends of which terminate in anedged blade in the form of an iron lance. They are used for dissections.
Microscopy
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