Subject ASC0003jr0
Journal of the Royal Microscopical Society.
ser.2:v.6:pt.2:no.4-6 (1886), Page 680 (1878-1968.)
New York Botanical Garden, LuEsther T. Mertz Library
BHL Page 31220463
Keywords
Patend diaphragm Klönne and Müller's Diaphragm microscope microscopy klonne muller plate aperture t-piece pin slot arm condenser move groove screw movement