Cambrian and Ordovician [deposits of Maryland, 
by R. S. Bassler] 
 - Baltimore,  The Johns Hopkins press,  1919. 
 - 424 p.  illus., LVIII pl. (incl. fold. map) diagrs.  26 cm. 
<br/><br/> At head of title: Maryland geological survey.  "The seventh of a series of reports dealing with the systematic geology and paleontology of Maryland."  Versos of some of the plates on which explanations are given are numbered as pages. 
<br/><br/>Bibliography: p. 34-44. 
<br/><br/><label>LCCN: </label>gs 20000192  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Maryland.<br/>Geology, Stratigraphic--Cambrian.<br/>Geology, Stratigraphic--Ordovician.<br/>Fossils--Maryland.<br/>Paleontology--Cambrian.<br/>Paleontology--Ordovician.
<br/><br/><label>LC Class. No.: </label>QE121  / .A215 vol. 7