Kirkman, Marshall Monroe, 1842-1921 · New York, Chicago, The World Railway Publishing Company · leaf 57
53 THE RECONNOISSANCE. passes. He will ascertain the elevation of the valleys, and will take the elevation of spnrs * from the divides, also plat the contours f of … PEDOMETER. and an odometer (Figs. Is a pocket instrument which records 11A, 11B, 11C), and a the distance the person carrying it has walked. In reality it records the num- ber of steps taken, but by proper ad- good watch. He will justment the distance traveled is in- dicated. not need to be…
Railroads · Transportation
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
