. The microscope; an introduction to microscopic methods and to histology. Microscopes. Ch. xu] history of lenses and microscopes 429 their easier handling or focusing. The common reading glass with its convenient handle (fig. 4) and the tripod (fig. 201) and focusing lens holder (fig. 202) are good examples. In reading the older hterature one often meets with the expression " smgle ; This means a srniple microscope, composed of one lens (fig. 182), and is in contrast with the " double microscope," or compound microscope of two lenses or two combinations (objecti
. The microscope; an introduction to microscopic methods and to histology. Microscopes. Ch. xu] history of lenses and microscopes 429 their easier handling or focusing. The common reading glass with its convenient handle (fig. 4) and the tripod (fig. 201) and focusing lens holder (fig. 202) are good examples. In reading the older hterature one often meets with the expression " smgle ; This means a srniple microscope, composed of one lens (fig. 182), and is in contrast with the " double microscope," or compound microscope of two lenses or two combinations (objective and ocular, fig. 248-249).. Ocular. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gage, Simon Henry, 1851-1944. [Ithaca, N. Y. The Comstock publishing company
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