hamstead beds. 



Fig. 76. 



Sketch of the ujyper part of Hamstead Cliff 

 (By Edward Forbes). 



193 



^'-^'H'-f-. 



■)>p^%fl)!,^' 



^,n. y.;fgfl<^'- ^'^ ■' 



«, Gravel, b. d. Marine Corbula beds. c. e. Lower Cyrena band. 



/. Shaly clays. 



In Parkhurst Forest, where a note by Mr. Godwin- Austen led 

 us to expect an outlier of the marine beds,* the survey had to be 

 entirely made by boring, for there are no open sections. Com- 

 mencing at the highest part of the Forest, we made radiating series 

 of borings and continued them southward and northward, till the 

 Black Band was reached. These excavations, and those made by 

 Mr. Keeping, lead us to conclude that the note of the occurrence 



* Mr. Godwin-Austen mentions the occurrence of Ostrea callifera in the Forest, 

 but does not state by whom it was found. Forbes, " On the Tertiary Fhivio-marine 

 Formation," p. 37, footnote, 



E 56786. 



N 



