Subject ASC0003j4h

Journal of the Royal Microscopical Society.
ser.2:v.1:pt.1:no.1-3 (1881), Page 397 (1878-1968.)
New York Botanical Garden, LuEsther T. Mertz Library
BHL Page 31227558

Keywords

estimate aperture microscope microscopy radiant angle uncover object line crescent focus centre concave refraction

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