A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures (1848)
Quekett, John, 1815-1861 · London, H. Bailliere · leaf 252
ens of the eye-piece E. The lightescaping from the object, through the lens E,is assisted in its reflection upwards to theeye by the dark glass; and this, says Mr.^=>l Ross,* effects a further useful purpose ofFig. 135. rendering the paper less brilliant; and thusenabling the eye better to see…
Microscopy
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