558 



its position accurately. I anticipate that it will be found 

 some 40 feet to 50 feet below the shelf of sandstone above 

 mentioned. 



Summary.— The geological section of the Upper Marine 

 Permo-Carboniferous Beds in Wattle Ponds Greek, between 

 Portion 31, Parish of Darlington, County of Durham, and 

 "The Retreat," at the junction of the main creek and a 

 tributary in the temporary common, is as represented in 

 the figure below. 



£ Glacial Mudstones with 



Zone with very large ei 



En/ry<i' -nut hobartense ; 



I Argilla 



i with "glendonites. 



The most noteworthy features of the section are:— 



1. A zone of very large glacial erratics, some 694 feet 



below the base of the Bolwarra conglomerate ; 



2. A zone with well preserved Eurydesma hobartense, 



about 794 feet below the same datum ; and 



