Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 135
rdinary street pavements in good condition. 20 On street pavements and turnpikes. 30 On turnpikes newlaid with coarse gravel and broken stones, 50 On common roads in bad condition. 150 On natural loose ground or sand. 560 Adherence Coefficienti On rails of maximum dryness. a u very dry. under… … PlateH, „ M -> fe vl ■* *, -c : S * «i «*. 1 1 $ a sSSs *! 3 * 0) • 3« ^ 5 ^fe^ 4 ^^^ °- t^*< r^ It*.4; %^ ^ j^ s- %>- {■ ^ ^St| ^ 1 i5 ^05 |f ■v. r; s*a II 13^ \ 1 - ^;...£ eg •5 f 38 •M-£- — .- O # ^s >^ ^ >^ *f 45 3? ^^ j^ >^ > 0 ^ Trigonometry. 125 To Reduce Indies and…
Mechanical engineering · Engineering
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