Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 63
t slide, and aU must be scrupulously clean. B I -Uj- C _i_ 1 Fig. 61. Depth■10in.m. 1400 sqm.m. cAb THOMAHAWKSLEY >* Fig. 62.—No. 3325a, Thoma-Hawksley Counting Chamber. The counting chamber consists of a plate of glass with anaimular groove ground upon it. The circular portion inside thegroove… … Tiirck. Thoma. Elzholz.
Microscopy
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