phere an attractive appearance, the instruments used by the carpenter and builder above outside is mapped off and painted like a large terres- referred to. trial globe. The next experiment was to ascertain if this organ could be influenced by any force other than gravi- Our front-page illustration… … one side. You will find it most dif- Fig. 3,—Section of a parabolic floor. To the woman the only level part of the floor is appar- ficult to walk in a straight line ently the spot on which she is standing. To her the man on the other side appears to be project- Fig. 5.—This picture shows how the…
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