Correspondence. 123 
also true that a small Lingula is found in a black shale resting imme- 
diately upon the limestone in the former locality, though not seen 
elsewhere in the same position. There are several other Linguhe in 
the Bell Island rocks, especially in a white sandstone at the very top 
of the series. Mr. Billings believed these latter beds to be the base of 
the Potsdam. If so, they are above all the Paradoxides beds, Topsail 
Head limestone ami Archicocyathus limestones of Trinity Ijay. They 
are also above the Eophyton beds of Bell Island. 
The Lingulicof Bell \&\Am\a.roc\\\e[\y Lvigulellasi)issn,L.lo\cnii,L.affinit 
and Lbujula murraiii. The former occupies the uppermost strata. All 
the other rocks of this island are crowded with fucoids, Cruziana simi- 
Us, Euphyton litinaaum, E. jukesi, and Anlhraria antujuata are very 
abundant. In the Kelly's Island rocks which pass beneath those of 
Great Bell Island, fucoids are also abundant and there is another Lin- 
giilo, L. hillingsia7ia. No trilobites have been found on either of these 
islands as yet.' The trilobites are all below and would occupy the in- 
tervening space between Topsail Head and Kelly's island. If Mr. 
Walcott said we had no evidence for this supposition, he was very much 
astray. We have abundant evidence. In the first place the Manual 
Creek shales just above the Topsail Head limestone contain numerous 
small trilobites. The larger trilobites of St. Mary's, Trinity and For- 
tune bays all underlie strata similar to those of Kelly's and Bell 
islands, and are seen coming in contact, all conformably related. I 
know of no Olenellus in any of these strata, unless Mr. "Walcott has 
found sucli last year. The only Olenellus I remember occurs in a pink- 
ish limestone at C«nada bay on the northern peninsula of the island, 
far removed, and evidently having no connection with the Conception 
bay primordial strata. These Olrndli were long ago referred to the 
Potsdam by Mr. Billings and are just beneath a heavy outcrop of Cal- 
ciferous. There is nothing approaching Calciferous anywhere on the 
southern or eastern portion of this island, from Cape Ray to Cape 
Freels. 
Now for a few words with regard to the so called Quebec Group 
in Newfoundland. I have also had much to do with that, and Mr. 
Murray and I held many conversations on the subject of its 
true position. Of course he always endeavored to reconcile everything 
with the structure as laid down in Canada, but this was a very dilHcult 
task. Whatever the serpentines and their associated rocks may be, 
whether igneous, metamorphic or whatever else, I am contident that 
in one locality at least in this country they rest unconformably upon 
Calciferous, Levis and Sillery.' In 1S74 I surveyed the Port-au-Port 
bay and gave the exposures there the closest possible scrutiny. On 
- Fragments of trilobites occur on Great Bell I.'^land. — J. M. 
*The name Calciferous useil here, does not mean that it is the eijuiv- 
alent of the Calciferous of New York, but only that Billings has called 
the Pointe Levis and Philiipsburgh grou]»s Ui">per Calciferous in New- 
foundland. It is an erroneous synchronism. In western Newfoundland 
Mr. Howley has found the Georgia group with Olenellus thompsoni, di- 
rectly under the Point Levis group. — J. M. 
