00913cam a22002651a 4500 gs 32000243 DLC 20260227111337.0 751015s1932 pauab 001 0 eng gs 32000243 (OCoLC)1706089 DLC PWcS MdU DLC premarc n-us-pa TN951.P4 S7 Stone, Ralph W. (Ralph Walter), 1876-1964. Building stones of Pennsylvania / by Ralph W. Stone. Harrisburg, Pa. : Dept. of Internal Affairs, Topographic and Geologic Survey, 1932. vii, 316 p. : ill., 1 folded map ; 23 cm. Bulletin M ; 15 At head of title: Pennsylvania Geological Survey, Fourth series. Includes index. Building stones Pennsylvania. Pennsylvania. Bureau of Topographic and Geologic Survey. 26983 26983