﻿REPORT OF THE DIRECTOR I9IO I25 



The basal mass of the Bonaventure here is wholly of deep red, soft 

 sands, the conglomerates not appearing for a distance of some 30 

 to 50 feet higher. The vertical beds below, beginning at the north, 

 are alternating shales and thin sands with thin limestones, the 

 shales dark, the limestone bands red, green or blue. Southward the 

 color is lessened and the beds become a gray white as they approach 

 the point of the cape where the lighthouse stands. Beyond the 

 cape the white beds and the entire series is terminated by down- 

 faulting against the red Bonaventure rocks beyond them. The thick- 

 ness of this vertical series of limestones is from 1500 to 2000 feet 

 without much evidence of loss from internal faulting; and in atti- 

 tude the beds fully conform to those of the Perce Rock and the 

 Mt Joli series. I have before shown that the fossils of these beds 

 are distinctively Siluric and the lists I have given indicate now a 

 Lower Siluric age for the southernmost or whiter layers and a 

 later stage for the northern, more highly-colored series. This con- 

 dition, if correctly inferred, seems to imply an overturn of the strata, 

 but much still remains to be learned from the fauna. The fossils 

 are not especially abundant, not often clearly preserved and rather 

 difficult to acquire, but the acquisition and subdivision of the fauna 

 of the series remains an interesting problem. This limestone mas- 

 sive inshore affords exposures along Birmingham's brook and 

 thence on toward Irishtown, rising gradually into the ribs of White 

 mountain, skirts the rear of the Ste. Anne plateau in higher eleva- 

 tions, shows itself at Corner of the Beach and comes out to the 

 Malbay shore in that vicinity (shown on the section here at the 

 north end). It thus encircles the entire series of Siluric, Devonic 

 and Bonaventure rocks about Perce, and forms the outstanding wall 

 of an ancient basin within which the Bonaventure rocks were here 

 laid down. We have as yet no reliable evidence that these Bona- 

 venture deposits extended westward beyond this rock wall. 



II 



ERUPTIVE CONTACTS IN THE MARINE DEVONIC DALHOUSIE BEDS AT 

 DALHOUSIE, NEW BRUNSWICK 



This mass of soft and highly fossiliferous shale has been de- 

 scribed at length and its fossils fully discussed in the second vol- 

 ume of my memoir on the Early Devonic of Eastern North 

 America (1909). I have more recently had opportunity to exam- 

 ine the extension of these beds from the shore exposure at Stew- 

 art's cove, inward or westward toward Dalhousie mountain. It is 



