Modern microscopy; a handbook for beginners and students (1912)
Cross, M. I, Cole, Martin J · Chicago, Chicago Medical Book Co. · leaf 104
e inworking. Although people very often buy deep-power eyepieces,it is advisable, with ordinary achromatic lenses, that no strongerpower should be used than an eyepiece giving an initial powerof 10 or 12 diameters. The best eyepiece for general purposesis the B. This gives a convenient size of… … Fig. 29.—Huyghenian Eyepiece. 84 MODERN MICROSCOPY without spectacles, should have an auxiliary cap made to fitover their eyepieces, carrying a lens of the power that correctsthe error of vision. This is especially necessary where measuringhas to be done, or where the microscope is arranged for a…
Microscopy
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