Subject ASC0003fon

The Journal of the Quekett Microscopical Club.
ser. 2, v. 7 (1898-1900), Page 112 (1898-1900)
MBLWHOI Library
BHL Page 7250014

Keywords

pocket reflecting microscope microscope Benjamin Martin micrometer Martin's pocket microscope 1739 pocket microscope B. Martin microscopy universal microscope push-tube focusing

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