54 



ME. F. DEBEXHAM OX A NEW 



[vol. lxxv,, 



position of this discovery will be emphasized later when I deal 



with other instances from this region. 







10 







pq 



An occurrence presenting some variations from the others was 

 discovered by Mr. Priestley at the mouth of Dry Valley (K). 

 It was found some hundreds of yards from the present shore 

 at about 50 feet above sea-level, and consisted of 



