, and is repre-sented at fig. 2; the eye-glass is 2 inches, the field-glass 4 inches in focus; the object-glasses are three innumber and situated in the part c, d, and may be usedtogether or separately. The object-glass at c is 3^- inchesfocus; the other two are of the same focus (4-i inches),and… … Gorings Megaloscope, one-sixth its real size, that which holds the others ; thus it can be used either ata certain distance or in close contact with them; in thelatter case the power of the combination is double whatit is in the former. These three glasses are all achro- 196 MICROSCOPIC OBJECTS.…
Microscopy
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