. Train resistance : a consideration of its elements and a discussion of experiments made with the university dynamometer car . o Tr^in Wrtqhinq 381 To$ ,v 6/9 © Or? °Cur/e EUGt 0 + 8/jo 25 .. CHICAGO. 35 0+7-65 5_ Speed-Miles per Hour20 I 2 ? 4- 2^. TEST

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