For an interesting historical reference to European ropeways, see the article
Aerial Wire Ropeways by J. Pohlig of Cologne. Paper delivered at Pittsburgh
AIME meeting, October, 1890. Published in Trans. AIME, vol. 19 (1891),
760-790.
Illustrated.
Noel Kirshenbaum, San Francisco (where Andrew Hallidie's cable car system is
still in good use on our hills)
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