Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 476
FIG. I. THE VANISHING DISK. eyeball that it must exist, and proceeded to findit. Now we can all find it very easily. If youwill hold Fig. i straight in front of the righteye, and about ten and a half inches away fromit, the left eye being kept closed, then looksharply at the center of the little… … thing being properly adjusted, the round blackspot will disappear completely from view. Some of our most delightful sensations arethose of color. Nature has given us a greatprofusion of them,but the eye is notsatisfied with whatit gets legitimately,as it were, but createsfor itself a lot of…
Children's literature
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