Subject ASC0003izf

Journal of the Royal Microscopical Society.
v.2:pt.2:no.4-7a (1879), Page 775 (1879)
New York Botanical Garden, LuEsther T. Mertz Library
BHL Page 9556212

Keywords

apertometer measurement angle universal Apertometer measure apparatus microscopy universal apertometer Apertometer measuring true angles degrees lenses

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