This long-awaited volume completes an in-depth survey of work performed by the Museum’s Scientific Research Department over the last 50 years. It contains narrative reports and essays interpreting the data that were published in the first two volumes in 1999. Seventy-five site reports present detailed analyses of samples, dating from 1500 B.C. to A.D. 1800, provided by institutions in more than 40 countries. Extensive essays discuss analyses of some glasses from Pompeii, the morphology of weathering on ancient glasses, and strontium-isotope studies of historical glasses and related materials. Sample descriptions and tables of data are also included for analyses conducted since the publication of Volumes 1 and 2. A comprehensive bibliography, a concordance, and an index of people and places complete Volume 3.