The microscope; an introduction to microscopic methods and to histology . ification, the drawing surface maybe brought nearer the mirror of the camera lucida by piling books orother objects on the drawing board. If one takes the precaution todraw a scale on the figure under the same conditions, its enlargementcan be readily determined (§ 186). A very satisfactorj- way to draw at low magnifications is to use asimple microscope and arrange a camera lucida over it as over the this way one may get drawings at almost any low magnification. If one has manylarge objects to draw at alow magn
The microscope; an introduction to microscopic methods and to histology . ification, the drawing surface maybe brought nearer the mirror of the camera lucida by piling books orother objects on the drawing board. If one takes the precaution todraw a scale on the figure under the same conditions, its enlargementcan be readily determined (§ 186). A very satisfactorj- way to draw at low magnifications is to use asimple microscope and arrange a camera lucida over it as over the this way one may get drawings at almost any low magnification. If one has manylarge objects to draw at alow magnification, thensome form of embryo-graph is very conven-ient. (Jour. Roy. Micr.,Soc, 1899, p. 223.) Thewriter has made use ofa photographic cameraand different photo-graphic objectives for thepurpose. The object is Fig. 118. Camera lucida for drawing objects natural size. (H. BauschJour. Applied Microscopy, vol. Hi {iqoo, p. Sgi). illuminated as if for a photograph and in place of the ground glass aplain glass is used and on this some tracing paper is stretched. Noth-. CH. V] DRA WING WITH THE MICROSCOPE 133 ing is then easier than to trace the outlines of the object. See also REFERENCES Beale, 31, 355 ; Behrens, Kossel and Schiefferdecker, 77 ; Carpenter-Dallinger,278 ; Van Heurck, 91 ; American Naturalist, 1886, p. 1071, 1887, pp. 1040-1043 ;Amer. Monthly Micr. Jour., 1S88, p. 103, 1890, p. 94 ; Jour. Roy. Micr. Soc, 1881,p. 819, 18S2, p. 402, 1883, pp. 283, 560, 1884, p. 115, 1886, p. 516, 1888, pp. 113, 809,798; Zeit. wiss. Mikroskopie, 1884, pp. 1-21, 1889, p. 367, 1893, pp. is described an excellent apparatus made by Winkel. Consult also the latestcatalogs of the opticians.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
