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"The image produced by a microscope formed of two positive systems is inverted, the objective L1 tracing from the object OO1 a real inverted image O'O'1, and the eyepiece L2L2 maintaining this arrangement." —Encyclopaedia Britannica, 1910

Ray Transmission in Compound Microscope with a Positive Ocular

"The image produced by a microscope formed of two positive systems is inverted, the objective L1 tracing…