all mechanical means of measuring The SCIENTIFIC AMERICAN has been published FourTxen Years, and has the largest circulation of any journal of its class in time. Connected with weights by an escapement device, the world. Itisindispensable to the Inventor and Patentee; each its oscillations are made… … BEMIS’ Ten Copies, for Six Months....... Ten Copies, for Twelve Months... movements of clocks with surprising precision. This re- with the latitude; that is, if the latitude is 42°, the angle Fifteen Copies, for Twelve Months... Twenty Copies, for Twelve Months................ $ gularity of…
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