Baltimore county. 

 - Baltimore,  The Johns Hopkins press,  1929. 
 - 2 p.l., 420 p. incl. illus., maps, diagrs.  XXVIII pl. (incl. maps, diagrs., profiles) and atlas of 3 fold. col. maps.  26 cm. 
<br/><br/> Some of the illustrative material is folded. 
<br/><br/>Bibliography: p. 38-57. 
<br/><br/>Preface.--Development of knowledge concerning the physical features of Baltimore county, by E.W. Berry.--The physiography of Baltimore county, by Eleanora B. Knopf.--The geology of the crystalline rocks of Baltimore county, by Eleanora B. Knopf and Anna I. Jonas.--The geology of the coastal plain of Baltimore county, by E.W. Berry.--The mineral resources of Baltimore county, by E.B. Mathews and L.H. Watson.--The soils of Baltimore county, by W.T. Carter, jr., J.M. 
<br/><br/><label>LCCN: </label>gs 30000244 //r86 
<br/><br/><label>LC Class. No.: </label>QE122.B3  / A5 1929