. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fis. 409.—Diagram to illustrate Schemer's experiment (after Landois). cate the circumstances under which there is double vision. The dotted lines indi-. Fio. 410.—To explain Scheiner's experiment (after Bernstein). The object is at o; the lens is represented by b : and the retma may be at m, m, re, re, or I, I. The card with its holes, e, /, is directly in front of the lens. It is plain that, it the rays strike the retina m any way except as repres
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fis. 409.—Diagram to illustrate Schemer's experiment (after Landois). cate the circumstances under which there is double vision. The dotted lines indi-. Fio. 410.—To explain Scheiner's experiment (after Bernstein). The object is at o; the lens is represented by b : and the retma may be at m, m, re, re, or I, I. The card with its holes, e, /, is directly in front of the lens. It is plain that, it the rays strike the retina m any way except as represented at c, double images must be formed. One or other of these wiu disappear according as the right or left hole of the card is stopped ; which of them wiu denend on circumstances—i. as to whether the case is that figured at m, m or I, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mills, Wesley, 1847-1915. New York, D. Appleton
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