SECTION IV., 1886. [elie 7] TRANS. Roy. Soc. CANADA. 
XIIL.— Preliminary Report on some Graptolites from the Lower Palceozoic Rocks on 
the South Side of the St. Lawrence from Cape Rosier to Tartigo River, from 
the North Shore of the Island of Orleans, one mile above Cap Rouge, and from 
the Cove Fields, Quebec. By Pror. Cuas. Lapwortu, LL.D., F.GS. 
(Communicated by J. F. Whiteaves, and read May 27, 1886). 
The collection of Graptolites from Gaspé, Gros Maule, Orleans Island and Cove 
Fields, etc., made by various members of the staff of the Geological Survey of Canada, and 
forwarded to me at the request of Dr. Selwyn, has been examined by myself, and the 
majority of the species identified. Several of the forms, however, require further study. 
Some are new to science; while others present characteristics which render their identi- 
fication with described types a matter of very grave doubt. These dubious forms must 
stand over until I have a little more leisure; but I do not believe that the additional 
facts they may afford, after further study, will greatly affect the main points laid down 
in this preliminary report. 
I find that the Graptolites forwarded in this collection belong to several very distinct 
zones, each of which corresponds very closely with a distinct Graptolite zone in Great 
Britain and western Europe; so that, while (as all American geologists are aware) the 
equivalency of these Graptolitic beds of the St. Lawrence with the calcareous strata of 
New York and western Canada is as yet incapable of exact settlement, the relative 
geological antiquity of the recognizable zones can be fixed, with a close approximation 
to certainty, by comparison with their European representatives. The zones represented 
in this collection range from the British Tremadoe Slates to the middle of the Bala or 
Caradoc Formation of Wales and the West of England. But while some of the European 
zones Within this stratigraphical range are fully represented in the collection, the fossils 
of others are strangely missing, even of some zones already known as certainly existing 
within the limits of the ground covered by the collection. 
The several species I have already identified either with certainty or provisionally, 
together with their localities, as shewn by the specimens in the collection, are given in the 
appended table. (See Table B.) Those to which an asterisk is prefixed will need further 
examination. The fossil-bearing localities are arranged generally in order of geological 
age in the table, simply as a matter of convenience in reference. The same rule will be 
observed with respect to the recognizable Graptolitic zones in the order of description. 

! The specimens from the south shore of the St. Lawrence below Quebec and from the Island of Orleans were 
collected in 1878, those from the Cove Fields, Quebec, in 1884, and those from near St. John’s market at Quebec, in 
1885, by Mr. T. C. Weston. The species from one mile above Cap Rouge, were collected by E. Billings many 
years ago (prior to 1862), and the fragments of a Dictyonema, from Cape Breton, by Mr. Hugh Fletcher, in 1876. 
The whole have been recently submitted to Prof. Lapworth, at the request of Dr. Selwyn.—J. F. W, 
