THE DECAY OF THE BUILDING STONES.[6]

By Dr. A. A. JULIEN.

The paper, which will be published in full by the Building Stone

Department of the Tenth Census of the United States, considers the

building stones employed in New York city and its suburbs, _i. e_.,

Brooklyn, Staten Island, Jersey City, and Hoboken.

Scientific American, September 29, 1883 Supplement. No. 404 · 第 27 / 75 题