Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 205
ted by thescrew b, which works out ofcentre in a conical hole ofthe lower frame, so that, thefurther it is introduced, themore closely the two frames,with their glasses, are ap-proximated. This patternworks equally well whicheverside is uppermost. In theReversible Cell Compressor ofthe same makers… … Rosss Improved Compressor.
Microscopy · Biology
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