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Important Discovery at Observatory.

An important discovery has been made at the Astronomical Observatory by means of the new 24-inch reflecting telescope obtained with the anonymous fund of 1902. This telescope has been used in measuring the light from three of the variable stars discovered recently near the nebula of Orion by means of photographic plates. These measurements have proved conclusively that the light from these faint stars varies, a fact which heretofore had been unestablished. Before the telescope was completed it was not expected that such accurate work would be possible, and the discovery is of interest both because it shows the progress which has been made in the building of telescopes, and because it establishes the fact that light which cannot be seen through the ordinary telescope may be determined by photography.

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