Lower Cretaceous. 

 - Baltimore,  The Johns Hopkins press,  1911. 
 - 5 p.l., [13]-622 p.  illus., XCVI pl., fold. map.  26 cm. 
<br/><br/> At head of title: Maryland geological survey.  Versos of some of the plates on which brief explanations are given are numbered as pages.  The fourth volume of a series of reports dealing with the systematic geology and paleontology of Maryland. 
<br/><br/>Preface.--The Lower Cretaceous deposits of Maryland, by W.B. Clark, A.B. Bibbins, and E.W. Berry.--The Lower Cretaceous floras of the world, by E.W. Berry.--Correlation of the Potomac formations, by E.W. Berry.--The reptilia of the Arundel formation, by R.S. Lull.--Systematic paleontology, Lower Cretaceous: Vertebrata [by] R.S. Lull; Mollusca [by] W.B. Clark; Pteridophyta [by] E.W. Berry; Cycadophytæ [by] E.W. Berry; Gymnospermæ [by] E.W. Berry; Monocotyledonæ [by] E.W. Berry; Dicotyledonæ [by] E.W. Berry.--General index.--Paleontological index. 
<br/><br/><label>LCCN: </label>gs 12000271 //r872 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Maryland.<br/>Paleontology--Maryland.<br/>Geology, Stratigraphic--Cretaceous.<br/>Paleontology--Cretaceous.
<br/><br/><label>LC Class. No.: </label>QE121  / .A215 vol. 4