526 NOVA SCOTIAN GEOLOGY — HOXEYMAX. 



II. — In the Huronian and Lower Cambrian divisions are, 

 first: Nos. 395, 416, from Louisbourg, C. B., and second: Nos. 

 417, 425, from Jebogue Point, Yarmouth, N. S. The Louis- 

 burg specimens, correspond with the Scatarie Island specimens of 

 my collection. Thej are regarded by the survey as of Huronian 

 age. I have regarded my specimens from Scatarie, C. B., — the 

 rocks being a part of the Louisbourg series — as corresponding with 

 my " Middle Arisaig Series," of Arisaig and the Intercolonial 

 Railway. The [. C. R. rocks I have regarded as corresponding 

 with certain Lower Silurian rocks of Wales, described by Professor 

 Ramsay. Trans. 1874-5. 



In the Catalogue of the Geological Survey, we have a note on 

 the Jebogue rocks : — " The rocks of Jebogue Point and Cape St. 

 Mary seem to be lower than the gold-bearing slates and quartzites 

 (whin) in the same neighbourhood. Catal. 141. 



Lower Cambrian. 



Atlantic Coast, specimens 426, 450. These are fnyn the 

 auriferous rocks of Nova Scotia. y 



Note. — " Supposed to represent either the base of the Pr«mor- 

 dial or the Lower Cambrian series." Catal. 141. 



III. — Lower Silurian, No. 461. From the Granite Junction, 

 Halifax. Nos. 462, 476 ; Bras d' Or and Cape Breton. 



The specimens from Bras d' Or contain Lingular They are 

 considered by Mr. Selwyn to be of Potsdam Sandstone age. 



IV. — Middle and Upper Silurian, Nos. 736, 53, are from 

 Arisaig, Frenchman's Basin, East River, Malignant Cove, Doctor's 

 Brook, McLellan's Brook. 



I would observe that the rocks of Arisaig Pier and Cove, 

 Frenchman's Barn and Doctor's Brook correspond with No. 5 of 

 my collection ; i. e, with A. of my "Upper Arisaig Series," viz : 

 Jaspideous rocks and Aluminous Silicates. These were first recog- 

 nized at Lochaber and then at Doctor's Brook, by my own obser- 

 vations. They are older than the Lower Arisaig or Clinton of 

 Dawson. Others are pre-carboniferous. 



The rocks, at East River, are Middle and Upper Silurian, at 



