464 E. W. ELLS — STRATIGRAPHY OF THE "QUEBEC GROl P." 



graptolites ore found at but few points r i J ■ . 1 1 -_r this coast, among which may 

 be Doted a small area near Ste. A.nne dee Monts, and the extremity of Gape 

 I; ei< r at the lighthouse, when- L6vis forms have been obtained by Dr. Sel- 

 wyn and Mr. T. C. Weston. These are probably from an included band of 

 L6vis rucks in the Sillery, since the red and green shales and hard sand- 

 stones appear a short distance on either side of the point ; and it is from 

 this locality that the Dietyonema sovia/e recognized !>v Professor Lapworth 

 was obtained. 



Tin. Succession about Levis and Quebec. 



Tin 8tratigraphical StLCcewion. — In the study of the (Quebec group about 

 I/vis ami along the St. Lawrence much confusion has evidently arisen from 

 the neglect to distinguish the different zones oi Limestone conglomerate. Of 

 these, Beveral are now known to exist, the horizons or geological position of 

 which are entirely distinct. Areas of conglomerate, not, however, often cal- 

 careous, also occur in connection with the slates of the lower Cambrian 

 which flank the ridges of crystalline schist; but these need not here be 

 further described. Of those which occur in the unaltered Quebec group, 

 four well-defined zones are recognized. 



The lowest division, which is of hut small extent, occurs near the base of 

 the Cape Rouge section and has not yet yielded fossils. 



The second zone occurs with the Sillery rocks proper in connection with 

 hard quartzose sandstones or with shahs of different colors. They are well 



d on the island of < Orleans, about two miles east of the hotel at the ferry 

 landing, and on the Beaumonl shore or south side of the St. Lawrence, 

 about four miles below Levis. They also appear at the extreme east end of 

 Orleans island and in several of the group lying in the river between this 

 island and Riviere du Loup, as well a- in connection with the quartzites on 

 the main land back from the coast, further east they are well displayed 

 about Bic and at other points on the north side of the Gaspe* peninsula. 

 These conglomerates are frequently coarse, with Limestone pebbles, often of 

 large size, which contain fossils of Primordial age, among which Olenellus 

 thompsoni i.~ abundant, while tl iated shahs contain Obolella and Borne 



obscure graptolites. None of the forms from the L^vis shales have yet been 

 recognized among these, and they are, ;i- ;i group, distinct from those of the 

 mxt or Levis division. In the interior these conglomerates are also seen 

 near St. Sylvester and St. David, south of the Chaudiere river, where they 

 are also associated with red and green -hale- of Sillery aspect. 



The third division iii ascending order comprises the LeVis conglomen 

 proper. These are clearly interstratified developments in the fossiliferoua 

 shales of that formation, ami contain a mixed fauna. Some of the pebbles 



