Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 153
the courseof the past two-score years, during which period we have seen a 138 Frank ]. SPrague. [J. F- I. large number of major electrical developments, many of which Ihave been fortunate enough to be concerned with. THE WAYSIDE SIGNAL. As to the wayside signal, heralded as the finality in… … Test engine. it is nothing more nor less than a limited indication of trafficconditions, and to be effective it must be seen, understood andobeyed by the engineer. The accidents which have occurred can-not, happily, be charged as a rule against failure per se of a systemwhich has been elaborated…
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