The microscope; an introduction to the microscopic methods and to histology (1911)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Publishing Company · leaf 243
Fig. 173. Compensation Oculars of Zeiss, with section removed to showthe construction. The line A-.-l is at the level of the upper end of the tube[ofthe microscope while B-B represents the lower focal points. Zeiss recommendsthe use of the compensation oculars if one desires.a greater magnification…
Microscopy
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