le used in observations of Arcturus. of stray light in the image showed its position. carried the upper end of the suspension was in turn The remaining parts of the diagram (Fig. 3) cor- With an observer at each of the telescopes T and 7’ carried on a small square block (b, Fig. 1), free to respond… … eo. 7. Leg. 3. in the back of the case, the star image in the radio- for many years, recently read a paper before the In- meter and the blackened vanes of the suspension stitute of Marine Engineers, England, which con- RADIOMETER. HELIOSTAT AND MIRRORS. tained some facts of interest concerning the…
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