64 THE DEVONIAN AND CARBONIFEROUS. [hull. 81. 



group age. In his report for the following year he 1 described a num 

 ber of sections, referring them to the Lower Silurian, and mentioning 

 the occurrence of Liugula, Obolella, and Dictyonema in some of the 

 beds. 



In a report on the slate formation in the northern part of Charlotte 

 County, New Brunswick, Mr. G. F. Matthew 2 states that the St. John 

 group occurs in the interval between the Kingston or Upper Silurian 

 rocks and the inclosing Laurentian ridges in King's County. No details 

 are given of the St. John group. 



A report on the Primordial-Silurian rocks of New Brunswick by Mr. 

 L. W. Bailey 3 presents a detailed description of the St. John group. A 

 section is given of the strata on BatclifTe's Mill-stream and Handford 

 Brook and local details of geographic distribution. This is accompanied 

 by a list of the fossils found which were identified by Mr. J. F. Whit- 

 eaves. 



In a later report on the geology of southern New Brunswick 4 the 

 Cambrian or Primordial Silurian rocks are described as occupying 

 basins or trough-like depressions among the older hills of pre-Cambrian 

 rocks east of the St. John River. 



In speaking of the strata carrying the Parad oxides in the vicinity 

 of the city of St. John, Mr. G. F. Matthew 5 states that the strata of 

 the St. John group fill a number of narrow, trough-like basins lying 

 between the Bay of Fundy and the central Carboniferous area of New 

 Brunswick. A carefully measured and detailed section of the St. John 

 outcrop is given with a description of the conditions under which the 

 fossils occur in the same. A thickness of 2,900 feet is assigned to the 

 section. 



The same writer argues in a paper on the "Geologic* Age of the 

 Acadian Fauna" 6 that on the evidence of the trilobites the St. John 

 group does not quite correspond to the Menevian of Wales, in the re- 

 stricted application of that term j but, as a whole, they indicate the sub- 

 jacent Solva group as the equivalent formation to the St. John group. 

 He repeats this correlation a year later, 7 when he says : " Prof. Hartfc 

 fixed the age of the St. John group as nearly as was possible in his time 



1 Report on the geology of part of the counties of Victoria, Cape Breton, and Richmond, Nova Scotia. 

 Geol. Surv. Can., Rep. Prog, for 1876-77. Montreal, 1878, pp. 429-437. 



2 Report on the slate formations of the northern part of Charlotte County, Now Brunswick. Geol. 

 Surv. Canada, Rep. Prog, for 1876-'77. Montreal, 1878, pp. 342, 343. 



3 Report on the pre-Silurian (Huronian) and Cambrian or Primordial Silurian rocks of southern Now 

 Brunswick. Geol. Surv. Can., Rep. Prog., 1877-'78, 1879; p. 28DD-34DD. 



4 Bailey, L. W., G. P. Matthew, and R. W. Ells. Report on the geology of southern New Brunswick, 

 embracing the counties of Charlotte, Sunbury, Queens, Kings, St. John, and Albert. Geol. Surv. Can., 

 Rep. Prog., 1878-1879, 1880, pp. 6D-8D. 



fi Illustrations of tha fauna of the St. John group. Royal Soc. Canada, Proc. and Trans., vol. 1, sec. 

 iv, 1883, pp. 8 4-88 ; pp, 271-279. 



6 The Geologic Age of the Acadian fauna. The Primitive Conocoryphean. British Assoc. Rep., 54th 

 meeting, 1884, pp. 742-743. The Geologic Age of the Acadian Fauna. Geol. Mag., new ser., decade 3, 

 vol. 1, 1884, pp. 470-471. 



7 An outline of recent discoveries in tfee St, John group. New Brunswick Nat. Hist. Soc. Bull. No, 

 $,1885, p. 98, 



