h forms the most important width, 22 feet in height and from 60 to 180 feet in the object of these heavy quarried stones being to pre- section of a long line of breakwaters that extend for length. They were towed to position over the foun- vent displacement of the rubble by the action of the dation… … BY PROF. W. F. WATSON. Fig. 1.—APPARATUS FOR MULTIPLE IMAGE PHOTO- The eyes of animals possess various devices for the GRAPHY WITH THE LENS OF A BEETLE'S EYE. refraction of light and the formation of images upon the retina. The crystalline lens and the cornea appear water. Then came the important…
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