Common objects of the microscope [electronic resource] (1900)
Wood, J. G. (John George), 1827-1889, West, Tuffen, ill, Bousfield, E. C. (Edward Collins), b. 1855 · London : G. Routledge & Sons · leaf 43
centre should now be divided by scratchingit with a fine triangular file, and the scratch mayof course be made at such a point as to afford atube of the required fineness. The edges shouldbe smoothed by holding them in the flame until DIPPING TUBES 23 they just run (not melt, or the tube will…
Microscopy
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