The microscope; an introduction to microscopic methods and to histology (1901)
Gage, Simon Henry, 1851-1944 · Ithaca, N.Y. Comstock publishing company · leaf 269
ower carbon is blunt, while with astronger current it becomes more pointed, and hides less light ; it alsocontributes a share of the illumination from its white tip (Fig. 205). 252 PROJECTION MICROSCOPE [CH. IX In order to see whether the carbons are in the most favorable posi-tion, Barnard and… … Fig. 204. Fig. 205. Figs. 204-205. Front and side views of the carbons of an arc light to give thebest illumination. -\- and — indicate the positive and negative poles Fig. 204 is a side view showing the carbons in section at an angle of 30 degreesfrom the vertical and the negative (—) or lower…
Microscopy
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