Tlie Devonian of the Acadian Provi?ices. 339 



dence is, therefore, presented on this subject, this cor- 

 relation will presumably stand in the opinion of those 

 who have most closely studied the question. Certainly 

 Sir William, to the date of his last work, found no occasion 

 to change his views as to their originally assumed position, 

 and everyone familiar with the large amount of careful 

 work which he accomplished on these rocks and on his 

 Devonian flora, a work which may be truly regarded as 

 among the most important which he accomplished in his 

 several lines of geological investigation, will regard his 

 determination in this field as neither hasty nor superficial- 

 The assumption made by Mr. White, on page 6 of his 

 paper, that " possibly Dr. Ells and Mr. Fletcher were 

 influenced in referring the Kiversdale beds to the middle 

 Devonian through first correlating them with the ' Fern 

 ledges ' of St. John, N.B.", is practically correct. As 

 regards the writer's share in this work it may be briefly 

 stated. For some years his work had lain, in connection 

 with Messrs. Bailey and Matthew, in tlie study of the 

 folded rocks of southern New Brunswick, and the principal 

 geological formations there found had been carefully 

 mapped out. Later several years were spent in the study 

 of the Devonian of the Gaspe peninsula over a very con- 

 siderable area. In 1884 he was assigned to the Cumber- 

 land and Colchester district. There the great similarity 

 of certain groups of rock along the south side of the 

 Cobequid mountains to those so recently studied in New 

 Brunswick was so marked that the writer had but little 

 hesitation in assigning them to a similar horizon. Not 

 only were they alike in their physical aspects, but they 

 presented the same stratigraphical unconformity beneath 

 the marine Carboniferous limestones and associated strata, 

 while the fossil contents were also largely identical. 

 Under such circumstances the correlation of the two 

 series was a simple matter, and this has been abundantly 

 confirmed by later investigators, notably by Mr. White 



