Brinton, Willard Cope, 1880- · New York, The Engineering magazine company · leaf 242
CouTicsv of Dr. Ewerbeck, Internationale Baufach-Aiisstellvnti. Leipzig, Germany , 1913 Fig. 185. Passengers Carried in Twenty-four Hours on the Street-car Lines of Frankfurt a M., Germany. Each Vertical Strip Represents 4,000 Passengers The map is about eight feet square. Strips of wood are glued…
Graphic methods · Statistics
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