246 NOVA SCOTIAN GEOLOGY—HONEYMAN. 
gical Survey of Great Britain, being applied to the formation 
next below the Lower Silurian. I make this explanation as the 
term Cambrian is now sometimes used differently. 
The Devonian and Upper Silurian of Nictaux, according to 
“Acadian Geology,” was transformed into Middle and Upper 
Silurian; and the Devonian granites were observed, at the back 
of Cleveland Mountain, at a point in the above described boun- 
dary line, a1 contact with Middle Silurian strata, without any 
metamorphism of the latter as the result of the contact. This 
indicates that the granite existed before the fotmation of the 
Middle Silurian strata. At some considerable distance south of 
the boundary line, at the Bloomington Road, granite is seen in- 
cluding fragments of the associated garnetiferous rocks, showing 
that the latter were formed and consolidated before the granite 
was prepared to enclose the gneissoid fragments. It was inferred 
that this condition was induced in the pre Middle and Lower 
Silurian, or pre Silurian period, (Cambrian) the gneissoid rocks 
being referred to early Lower Silurian or Cambrian time.— 
Transactions 1877-8. 
At Moose River the new mines, considered by “ Acadian 
Geology” to be of the same age as the iron deposits of Nictaux, 
produced the giant trilobite Asaphus ditmarsiae of a Lower and 
Middle Silurian race. The Bear River strata corresponding on 
the south side of the syncline have produced evidence of like 
age with the iron deposits. The underlying quartzites witb 
fossils which intervene between the preceding and Greenland 
granites indicate a thickness too great to be included in any 
Middle Silurian series. I have run the boundary line between 
these and the granites. 
The highly metamorphic quartzite specimen with a vein of 
quartz having the singular organism <Arthrostauros godfreyt 
and a cast of Moclurea, described in Trans. 1878-80, indicates 
that three great bands of quartzite on the north side of the 
magnetyte strata may be fossiliferous. The specimen might be 
derived from any of the three, although I assigned it to Bogart’s 
quartzite, which occupies a position relative to the Asaphus 
magnetyte, like that which Rice’s mill quartzite and continuation 
