1990 American Society for Testing and Materials (Philadelphia, Pennsylvania), 6 x 9 inches tall trade paperback in brown glossy covers, copiously illustrated with black-and-white photographs and maps, index, [6], 208 pp. Very slight soiling, rubbing and edgewear to covers, with a slight shadow where a label was removed from the spine. Former engineering company copy, with stamps and a label covering a removed bookplate to the verso of the cover. Otherwise, a very good copy - clean, bright and unmarked - of this uncommon reference.

Fourteen papers from the Symposium on Petrography Applied to Concrete and Concrete Aggregates, held June 26, 1989 in St. Louis, MO, and sponsored by ASTM Committee C-9 on Concrete and Concrete Aggregates and its Subcommittee C09.02.06 on Petrography of Concrete and Concrete Aggregates. The papers are divided into three sections: Approaches, Examination, and Specimen Preparation of Concrete and Aggregates for Petrographic Studies; Petrographic Examination of Aggregate Problems; and Petrography Applied to Solving Varieties of Concrete Problems.