Subject ASC0003j13
Journal of the Royal Microscopical Society.
v.3:pt.2:no.4-6 (1880), Page 1052 (1880)
New York Botanical Garden, LuEsther T. Mertz Library
BHL Page 9531757
Keywords
Geo Wale Microscope iris diaphragm working microscope Iris diaphragm microscope diagram G. Wale