The microscopist : a manual of microscopy and compendium of the microscopic science : micro-minerology, micro-chemistry, biology, histology, and pathological histology (1877)
Wythe, J. H. (Joseph Henry), 1822-1901 · Philadelphia : Lindsay & Blakiston · leaf 36
Noberts Illuminator. Parabolic Illuminator. self-luminous on a black ground. For low powers thiscan be easily done by turning aside the concave mirror asin oblique illumination, or by employing Noherts illum.i-nafor, which is a thick plano-convex lens, in the convex 36 THE MICROSCOPIST. surface of…
Microscopy · Histology · Microorganisms
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