LORRAINE FOSSILS AND THEIR LOCALITIES. 487 



dently the St. Lawrence and Champlain fault itself), and are also made to 

 abut against the Sillery formation on the same ground. 



St. Nicholas. — About two miles above the village of St. Nicholas, Dr. 

 Ells and the writer obtained the following species from the upturned and 

 broken beds of this terrane : 



Orthograptus qaadrimucronatas ; Ambonyehia radiata ; 



Dlplograptus, sp. nov. ; Orthodesma parallelum ; 



Leptcena serleea; Modiolopsls, sp. und. ; 



Orthis testuduiarla ; Trinucleus, sp. und. 

 Zygospira headi; 



C6te Sauvageau. — At Cote Sauvageau these shales are also well exposed, 

 and may be seen to advantage along the road leading to the tanneries. 

 Occasionally there is met here, as at St. Nicholas and Montmorency, in the 

 gorge, a band or two of hard, compact quartzite, with thin films of shale 

 separating it from the softer and more fissile strata. These hard bands are 

 well seen in the gorge at Montmorency. One of these bands at Cote Sauva- 

 geau showed the presence of Anazyga recnrvirostra, Hall, and Orthis testudi- 

 naria in the thin film of shale overlying it, but no other forms were obtained 

 here except very obscure and ill preserved fragments of graptolites, appar- 

 ently diprionidian. 



Montmorency Falls. — On both sides of the gorge below the falls of Mont- 

 morency river the Lorraine shales are well developed and form a part of Sir 

 William Logan's original section.^ Here the strata are inclined at a high 

 angle, averaging 45°, and are extremely soft, fissile and earthy ; the harder 

 bands, which are also lighter colored, standing out in relief. These shales 

 are often stained purple and show evidence of disintegration from a once 

 harder and more compact rock. None of the characteristic fossils of the 

 Lorraine shales which abound at St. Nicholas were found here. Ortho- 

 graptus quadrimucronatus, however, was found, and a careful examination of 

 the strata would no doubt reveal other forms entombed in these strata. 



The Quebec : The Quebec Massif. — Next in order comes the series of rocks 

 forming Cape Diamond, the Citadel front and base, and the upper town 

 prQper in Quebec city. The rocks which constitute this series are varied 

 and numerous. 



At Cote d' Abraham they consist of hard, compact, black, bituminous, 

 calcareous bands, which break with a conchoidal fracture and hold frag- 

 ments of graptolites, associated with a band of what appears to be a hard 

 and cherty conglomerate, carrying clear grains of quartz and holding a 

 number of fossils, chiefly monticuliporidse. At this locality the following 



* Geology of Canada, 1863, pp. 198, 199. 



