172 PROCEEDINGS OP THE ACADEMY OP 



bore out the identit}'. If this be truly the same thin seam which 

 crops out near Ellenboro', and which I have supposed to be the 

 same as tliat on Mr. Moat's farm, there is no difficulty in prophe- 

 sying an absence of coal and oil from these Tj'ler Count}' lands. 

 If the seams are not the same the structure must be so complicated 

 as to need a special stud}'. The chauces, however, are very much 

 against the existence of valuable mineral deposits on the Tyler- 

 Ritchie tract. 



Prof Lesley remarked that he had not had an opportunit}' to 

 speak with Prof. Frazer before the presentation of his report, but 

 that he had seen Mr. Stevenson lately, who informed him of a 

 very important observation which he had made in the region of 

 the Harrisville tract. 



Mr. Stevenson had satisfied himself of the existence of a fault 

 on the Hughes River which brought up the lower measures hori- 

 zontally against the middle barren group of coal measures which 

 lay westward of them. 



Prof Lesley regretted the absence of Mr. Stevenson, who could 

 of course much better explain his own views on this subject, but 

 he believed that this fact had a most important bearing on the 

 geology of the whole region. 



Prof. Frazer asked how the horizontal structure of this faulted 

 district could be satisfactorily accounted for; to which Prof. 

 Lesley replied that it would necessitate the supposition of a 

 vertical drop of the region west of a north and south line of 

 fracture parallel to, and perhaps synonymous with, the " Oil 

 Break" anticlinal, which is only a few miles further west. 



In reply to a question as to his opinion of the probability of 

 the sanclstone of the downthrown region being the representation 

 of the Mahoning sandstone. Prof Lesley said that he understood 

 Prof Stevenson to hold that opinion. 



The Committees to which they had been referred recommended 

 the following papers to be published : 



