the earth by his famous ex- drawn. periment made in 1851; in this he used as a pendulum The laying of this pipeand setting the drip in the along metal wire having at the end a heavy spherical middle of the river necessitated the temporary closing mass. A stylus, fixed under the sphere, strikes two… … with his large French racing machine. The dis- ing about 4 pounds; its height upon the rod is tance for all the races was five miles. made adjustable by a screw-thread. At the upper Among those who raced their machines were Col. J. J. Astor, Mr. W. K. Vanderbilt, Jr., Mr. part of the rod is a…
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