NEW YORK ACADEMY OF SCIENCES.
On Monday evening, January 29, 1877, a meeting of this Academy was
held at the School of Mines, Columbia College, Dr. J.S. Newberry,
President, in the chair. Mr. A.A. Julian, A.M., read a paper on the
Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 30 / 203 题