132 XOVA SCOTIAX GEOLOGY — HONEYMAN. 



Upper Silurian. This is its first occurrence in Nova Scotia, away 

 from Arisaig. It appears to be a prior occurrence. 



17. Tentaculites, s. p. — This is a small species like that of B, 

 " Upper Arisaig," Middle Silurian. 



19. Arthrostauros godfreyi. — This is the Cruciform organism, 

 associated with Maclurea. Its obvious form is that of a Roman 

 cross, not altogether straight in the body, the lower part of it 

 being bent to the left. It is jointed. The number of joints is 

 eleven. The ninth has two branches or arms of equal length 

 proceeding from it in opposite directions. The right one has a 

 tendency upward, not being altogether at right angles to the 

 straight part of the stem. The joints are compressed bead-shaped, 

 and are generally half an inch in diameter. The only form that 

 I have seen figured, which has any thing in common with it, is 

 the Arthroclema pulchella, Billings. Of this the joints are 

 differently shaped, and the branches are more numerous. While 

 Clema, signifying a twig, is sufficiently appropriate as represent- 

 ing the shape of the latter, Stauros is more appropriate to the 

 specimen before us. 



The Maclurea and Arthroclema are Lower Silurian forms in 

 Canada. 



Localities. 

 The localities in the Moose and Bear rivers area, having fossils 

 are : 1st, the New Mines. 2nd, the Old Mines. 3rd, Beaver river 

 above the bridge and at Rice's mill. 4th, the continuation of 

 Rice's mill strata, at Moose river. 5th, Bear's river midway be- 

 tween the Village bridge and Victoria bridge. 



Inferences. 

 We are thus led to the conclusions — 



1. That the magnetyte strata of Moose River are not newer 

 than the Middle Silurian Period. 



2. That the Quartzites at Bogart's and their eastern extension 

 are of Trenton, if not Calciferous, age. 



I have already on lithological considerations, regarded the great 

 quartzites of Gaspereaux River, Kings County, and their asso- 

 ciated argillites as possibly of Lower Silurian age. — Transactions 

 1878-9. 



