.i RdlloiKil V Icti' of fliv Ki'ireciid ini II. — W i m-hcll. IHl 
by Irving and Van Hise, that they cannot be parallelized with 
them, although they directly overlie non-conforniably the 
same Animikle beds. 
Mr. Thomas Macfarlane concluded from his section of the 
Keweenawan at cape Mamainse, on the eastern shore of lake 
Superior*, that a sandstone of greater age than the bedded 
traps is a reasonable supposition, from the evidence, and that 
it perhaps belongs to the lower group of the upper copper- 
bearing series. He seems, however, in deference to the opin- 
ion of Sir William Logan, to have finally decided that it is a 
part of the non-conformable overlying sandstones which ex- 
tend to Sault Ste. Mai'ie. 
The Kei('f'f)if(ir(in criipflri' <t<it.^ folio iri inj flic (iccimi idfd ion 
of ill ix <''>ii<ll<>>iif"i'<if<' end (]ii(i rfziife^ sepnrafed fli« /'(wadoxides 
horizon from tlw Diccdloccphnlnx horizon. The former is rep- 
resented by Paradowides ha rberi of the pipestone clay, and the 
latter by the fossils of the St. Croix beds of the Mississippi 
valley. It is evident from the non-discovery of fossils that 
during the accumulation of the Lake Superior sandstone, 
which seems to be conformable below the St. Croix sandstones 
and dolomytes, the ocean's waters were not yet sufficiently 
sett-led to allow of the existence of animal life, at least in the 
Lake Superior region. There is no evidence that the ocean 
was driven ovit at once after the eruptions. 
The Olenelliis horizon is xcpurated from tin- Parado.i-ides 
horizon by the d is fur bun re thul dosed the A iiimilt-ie. The ab- 
sence of Olenellus, and of nearly all fossils, from the Animikie 
strata of course stands yet in the way of the full establish- 
ment of this proposition. But there is every reason to expect 
that the proper fauna will yet be discovered in these beds. 
Indeed, it is not wholly wanting. Mr. G. F. Matthew has de- 
scribed a 'J^aonurus-likc impression from the Animikie rocks 
of the north shore of lake Superior, discovered by Dr. Selwyn, 
and has named it Jfef/«.s'/(7<»/7e.s-.-j- This is similar to several 
other forms found by Mr. Matthew in the St. John group of 
New Brunswick and illustrated by him in the same volume. 
Reference should also be made to the indication of foramin- 
iferal fossils in the glauconite sand from which the iron ores 
*Geological Survey of Canada, Report for 1866, p. 136. 
fTrans. Roy. Soc. Canada, vol. viii, sec. iv, p. 14.3, 1890. Originally 
described in the Am. Jour. Sci., Feb., 1890, as Taonichnites. 
