84 THE ROYAL SOCIETY OF CANADA 
Filicoid plants, were in the black sliceous shales, which here represent 
Division 2 of the Mascareen phase of the Silurian succession, and pre- 
sumably the plant-bearing beds of the St. John basin. The locality 
was on the western side of Beaver harbour, on the road to Deadman’s 
harbour; no fossil plants were found on this occasion. 
A casual examination of the eastern shore of Beaver harbour 
however at this time, showed that there were plant beds in the Silurian 
rocks there, and the writer determined to revisit the locality with the 
view of collecting plants for study. Accordingly in the following sum- 
mer a visit was made to this place in company with Mr. Wm. McIntosh, 
the curator of the Natural History Society of New Brunswick. 
Beaver harbour is a small haven on the north side of the Bay of 
Fundy in Charlotte county. The country to the north and east of the 
harbour is covered with heavy deposits of Pleistocene sands and clays, 
which with extensive gravel beds conceal the older rocks; but around 
the harbour itself are ample exposures of these latter, partly of Silurian 
age and partly of greater antiquity. The points at the mouth of the 
harbour consists of ancient (Pre-Silurian) voleanic rocks, diorites and 
schists, which extend thence north-eastward through the interior of the 
province of New Brunswick for about fifty miles. 
At the north end of the harbour another ridge of pre-Silurian rocks 
is exposed in an irregular series of hills on the southern margin of the 
gravel plateau of Pennfield. Between these two ridges hes a folded 
basin of Silurian sediments in the lower part of which the fossil plants, 
here considered, were found. Nearly the whole western side of the 
harbour, and about half of the eastern side, where not broken by the 
intrusion or exposure of older rocks, consists of Silurian ledges. 
The plants occur in beds along the shore-line of the eastern side of 
the harbour. On the west side, south of the village of Beaver harbour 
there is an exposure of the characteristic black silicious slates of Division 
2 of the Mascareen phase of the Silurian series, and at Wright’s Head, 
immediately south, the bluffs at the shore of the harbour consist of 
gray sandstones which correspond to Division 3 of the Mascareen suc- 
cession; no marine fossils however have been found in these rocks, but 
in the next basin of Silurian rocks to the westward the corresponding 
measures have yielded a Niagara fauna. 
The black silicious slates (Division 2) do not appear on the eastern 
side of the harbour where beds of Division 1 form the shore line; the 
former division if present would be under water in Thompson’s cove, 
on this side of the harbour. Thus only the basal portion of the Silurian 
basin shows along this shore and following the decision of the palæonto- 
logists of the Canadian Survey in reference to the faunas of the 
