THE PRESERVATION OF TIMBER.

[Footnote: From the Transactions of the Society.]

REPORT OF THE COMMITTEE OF THE AMERICAN SOCIETY OF CIVIL ENGINEERS ON

THE PRESERVATION OF TIMBER, PRESENTED AND ACCEPTED AT THE ANNUAL

CONVENTION, JUNE 25, 1885.

Scientific American Supplement, No. 514, November 7, 1885 · 第 35 / 68 题