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“For a laboratory microscope, the pattern represented here has been found very convienient, —the framework being of mahogany or other hard wood, the stage being large enough to admit a dissection or carry a water-trough of considerable size, and the bent armthat carries the “powers” being made capable of reversion, so as to permit the use of lenses of very long as well as of very short focus.” —The Encyclopedia Britannica, 1903


The Encyclopedia Britannica, New Warner Edition (New York, NY: The Werner Company, 1893)


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