122 NEW YORK STATE MUSEUM 



ferous limestones of Siluric age are exposed at various places about 

 five miles from the mouth of the river and thence north. The 

 tremendous unconformity between these highly inclined Siluric 

 limestones and the essentially horizontal Bonaventure conglomerates 

 is seen at every contact, but it is nowhere more forcibly pronounced 

 than at the " Antimony mine " which lies seven miles back of New 

 Richmond among the Carleton mountains. Here the unconformable 

 formations mentioned have parted or been spread apart and the 

 interval is filled by a '* vein " or other deposit of quartz having a 

 width of eight to twelve feet. Where best exposed this quartz 

 carries a very considerable amount of diffused stibnite and along 

 certain planes of the deposit the stibnite is concentrated into solid 

 seams some of which are several inches in width and of notable 

 extent. No trace of the Devonic in place has presented itself near 

 these contacts surrounding the plain/ but among the loose pebbles 

 and boulders which have been used in the construction of the Mont- 

 gomery Company's breakwater at the west side of the New Richmond 

 plain — material which has been gathered from the farm fields — are 

 blocks of Devonic sandstone filled with Leptocoelia flabel- 

 1 i t e s and Rensselaerias ; the latter are unlike any species yet 

 known from the Gaspe sandstone, but are allied to, probably iden- 

 tical with, species occurring in the Lower Devonic Moose River and 

 Chapman sandstones of Maine and the Dalhousie beds of New 

 Brunswick (cf R. atlantica and R. stewarti). 



these rocks. The Ells maps, for the reason intimated, become rather hard 

 to read in the field because of the inclusion within the single Devonic color 

 the lower part of these red beds with the other very different beds of earlier 

 Devonic. To make Doctor Ells's conception of his Devonic unit clear in 

 this place, his definition of the term as applied to his Gaspe maps is here 

 given : 



The Devonian consists principally of moderately coarse gray con- 

 glomerates, sandstones and shales, though red beds occur at several 

 places. The largest area is that of the Great Cascapedia which is prob- 

 ably continuous with that of the lower Restigouche, though largely con- 

 cealed below Scaumenac bay by the red beds of the Lower Carbon- 

 iferous. The beds of the Cascapedia though containing abundance of 

 corals and brachiopods at several points have not so far yielded the 

 rich flora and vertebrate fauna of the Campbellton and Scaumenac 

 areas. This area is apparently separated from the more eastern or 

 Gaspe area by ridges of Silurian and older rocks. The beds of Scau- 

 menac bay and eastward probably represent the upper portion of the 

 Devonian system, while those of Campbellton belong to its base. 



1 There are outcrops of dark shale with some gray sandstone on Brule 



brook near the Little Cascapedia which Ells regarded as Devonic. No fossils 



have been found in them. The Siluric-Bonaventure contact noted above at 



the Antimony mine lies far within the Devonic area indicated by Ells's map, 



in fact not far from his Siluric-Devonic contact. 



