258 XOVA SCOTIAN GEOLOGY — HONEYMAN. 



were photographed by Mr. Thomas Weston, of the Geological 

 Survey. 



Addenda. 

 Geological Gleanings from the Economics. 



1. Laurentian. 



Syenite from George's Mountain, C. B. Exhibitor — James 

 McQuarrie. 



Syenite from Campbelltown, C.B. Exhibitor — C. J. Campbell. 



Marble — polished; white and mottled, from Marble Mountain, 

 C.B. Exhibitor— J. Silver. 



Green Breccia, polished ; from Scatarie Island, near Louis- 

 bourg, C.B. 



2. Cambrian. 



Block of Gneiss (Ironstone) from Halifax. 

 Auriferous Quartz collection. Honorable Robert Robertson, 

 exhibitor. 



3. Lower Silurian? 



Blocks of Granite. Halifax — Shelburne. 



Lower Silurian. 



Iron Ore from Whycocomah, C. B. ; Red Hematite, East Bay, 

 C.B. ; Calchopyrite, Copper Ore, Poison's Lake. W. Ross, 

 exhibitor. 



Calchopyrite, from Lochaber Lake, N. S. James Hudson, 

 exhibitor. 



Middle Silurian. 



Fossiliferous Iron Ore, Blanchard, East River, Pictou, N. S. 

 Crawford and Gilpin, exhibitors. 



Fossils Athyris in this ore, characteristic of the Mayhill 

 .sandstone, Salter or Medina sandstone, U. S., have led me to 

 regard the bed as lower than Clinton; but as this member of the 

 " Upper Arisaig Series," at Arisaig, and other localities, has 

 only a thickness of 250 feet, I am disposed to regard the bed as 

 lying in the Clinton and to regard the athyris as ranging higher 

 than A of the Upper Arisaig Series. 



Limonite, East River, Pictou ; Specular Iron Ore, East River, 

 Pictou. Exhibitors — Crawford and Gilpin. 



