Solar Microscope

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“This consists of two lenses, one of which is called the condesner, because it is employed to concentrate the rays of the sun...The other is a double convex lens, of considerable magnifing power, by which the image is magnified.” -Comstock 1850


J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 251


TIFF (full resolution)

2400×951, 225.9 KiB

Large GIF

1024×405, 39.4 KiB

Medium GIF

640×253, 20.9 KiB

Small GIF

320×126, 7.8 KiB