Scientific American 139 AUGUST 30, 1902. tending wooden structure 16 feet square, erected at the expense of a lieutenant in the navy, and equipped WASHINGTON. with a 5-foot Troughton Transit. This was our Naval BY FREDERICK MOORE. Observatory in embryo. The transit was one of the instruments made… … the secretary of the navy took it upon miles east or west of the mariner’s cal- himself to establish this little observa- culation of his position. tory under the name of “A Depot fer Recently great changes have occurred Charts and Instruments,” by placing an in the scientific staff of the…
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