CLARK, WM. BULLOCK, ET AL. - Maryland Geological Survey Volume One.

1897. John Hopkins Press, Baltimore. 539 pp. figs. 17 plts. some fold-out, some col. Including an historical sketch and outline of the knowledge of the physical features of the state (pp.43-228), an extensive bibliography, and a report on magnetic work. Orig. cloth, gilt, very good. [2 kg].