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BY THE SAME AUTHOR

REFERENCE BOOK OF

TABLES AND FORMULAS

FOR

Electric Street Railway Engineers

Flexible Morocco. Price, $1.00

THE W. J. JOHNSTON COMPANY

253 BROADWAY, NEW YORK

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Author of "Reference Book of Tables and Formulas for
Electric Street Railway Engineers"

Second Edition. Entirely Rewritten

NEW YORK

THE W. J. JOHNSTON COMPANY

253 BROADWAY

1896

COPYRIGHT, 1892 AND 1896,

BY THE W. J. JOHNSTON COMPANY.

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