Subject ASC0003iy1

Journal of the Royal Microscopical Society.
v.3:pt.1:no.1-3 (1880), Page 513 (1880)
New York Botanical Garden, LuEsther T. Mertz Library
BHL Page 9528950

Keywords

microscopic observations maths fisicals formula draws chart lines optics grid circle microscopy axos aplanatic focus equidistant parallel lines intersecting right angels squares angels

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