y solid foundation for the latter. one immediately over the back of the brush, and the other The body of the Fig. 1 shows the combined tool complete, and Figs. 2 and projecting over the side of the brush. i telescope is balanced by two weights whose supports are 3 represent the anvil and the clamp… … polar axis. With this instrument the observer can sweep every point in the heavens without changing his position. The vise is of improved construction, which permits of the only change he makes in the latter being that of moving quickly adjusting the movable jaw so that the two jaws are ance of…
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