This volume is a catalog of the rich & extensive collection of maps in the Library of the American Philosophical Soc. (APS) in Philadelphia. it contains information on some 1, 750 printed maps, over 1, 000 manuscript maps, 136 atlases, two globes, & one model. Murphy Smith began this project in 1985 shortly after he retired from his long career as Associate Librarian of the Society, when Librarian Edward C. Carter II named him Andrew W. Mellon Sr. Research Fellow. Smith came to be recognized as one of the most knowledgeable & helpful historical RCRA librarians in the country. Illustrations.