Further Reading

Acid rain: The facts, 1988: available from Inquiry Centre, Environment Canada, Ottawa, Ontario, Canada K1A 0H3.

Amoroso, G.G., and Fassina, V., 1983, Stone decay and conservation: New York, Elsevier, 453 p.

Hannibal, J.T., and Park, L.E., 1992, A guide to selected sources of information on stone used for buildings, monuments, and works of art: Journal of Geological Education, v. 40, p. 12-24.

Pickering, R.J., 1987, Acid rain: U.S. Geological Survey Open-File Report 87-399.

U.S. Geological Survey, Building stones of our Nation’s Capital: Reston, Va., U.S. Geological Survey general-interest publication.

Winkler, E.M., 1973, Stone: Properties, durability in man’s environment: New York, Springer-Verlag, 230 p.

Limestone

Marble

Sandstone

Granite

Photographs by the author · Edited by Kathleen Gohn · Publication design by Elizabeth Junek

★ U.S. Government Printing Office: 1995-394-904