Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 151
M. ISTachet on the plan devised by Dr. <LLawrence Smith, of Louisiana, U.S., for the purpose of viewingobjects from their under side when heat or re-agents are beingapplied to them,* has lately been improved by its constructor witha special view to meeting the requirements of observers engaged… … Swifts Portable Binocular, as packed in case. glass mirror silvered on its upper surface, which is placed at such anangle as to reflect the light-rays received through the inverted Objec-tive mounted on the top of the box, into the body fixed into itsoblique face. Over the objective is placed the…
Microscopy · Biology
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