. Building and repairing railways . Fig. 11 A. , the distance traveled bythe tire of a wheel. In reality it re-cords the number of revolutions, butby proper adjustment the distancetraveled is Fig. 11B. dial with leather case and straps. secures a guide having local knowledge of thecountry. TEE RECONNOISSANCE. 55 In making a reconnoissance the most directline should always be examined first, unless thereis positive knowledge of some insurmountabledifficulty. Should this be the case, of course theterritory to the right or left
. Building and repairing railways . Fig. 11 A. , the distance traveled bythe tire of a wheel. In reality it re-cords the number of revolutions, butby proper adjustment the distancetraveled is Fig. 11B. dial with leather case and straps. secures a guide having local knowledge of thecountry. TEE RECONNOISSANCE. 55 In making a reconnoissance the most directline should always be examined first, unless thereis positive knowledge of some insurmountabledifficulty. Should this be the case, of course theterritory to the right or left will be short route, other things being equal, should not, however* betoo quickly aban-doned. Rocky val-leys, giving the im-pression of difficultand expensive con-struction, have of-ten been summari-ly avoided, when af-terward they haveproved to be thecheapest the gen-eral direction of aproposed line cros-ses ravines or pas-ses from a summitinto a valley, fol-lows a stream forsome distance andthen ascends another stream to a divide, it willbe found advisable to look for a high line andkeep on the summit, following a spur out to thestream, cross the stream by a viaduct to a spuron the opposite side and again ta
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
