Rohr, M. von (Moritz), 1868-1940
Abbe's apochromats : in commemoration of the fiftieth anniversary of their announcement, July 9, 1886 / Moritz von Rohr.
Lenses.
Optics.
Microscopy -- instrumentation -- 19th Century.
Optics -- instrumentation -- 19th Century.
Abbe, Ernst, 1840-1905.
Apochromats.