in some aspects appear to be transversely furrowed stems with longitudinal striæ, and in other specimens present the appearance of monocotyledonous leaves, with strong longitudinal nerves and more slender transverse ones. These are perhaps stipes of ferns, some species of Cyclopteris presenting a somewhat similar appearance in their flattened petioles. There also occur both at St. John and Gaspé, carbonaceous films of uncertain form, and minutely pitted all over, the precise nature of which I cannot determine.

II. PERRY, MAine,

The rocks at this place consist of sandstones and shales, very closely resembling those of Gaspé. They were first described by Dr. Jackson, in his Report on the Geology of Maine. More recently they have been noticed by Prof. Rogers, in the Proceedings of the Natural History Society of Boston. Prof. Rogers regards them as of Devonian date, in which view Dr. Jackson concurs, and the evidence of the plants is favourable to the same conclusion. Their stratigraphical relations have not, however, been accurately worked out. Mr. Richardson, of the Geological Survey of Canada, represents them as apparently resting unconformably on metamorphic rocks of uncertain date, but which, according to some recent observations of Prof. Rogers, may be in part of Upper Silurian age. The fossils from this place which have come into my hands, are preserved somewhat imperfectly in hard coarse sandstone. They consist of the following species:

1. Cyclopteris Jacksoni.-S. n.

I think it but just to name this fine species after its original discoverer, and the explorer of the geology of Maine. It is closely allied to C. Hibernica and C. McCoyana from the Devonian of Ireland; but is sufficiently distinct to constitute a well marked species. It resembles the ferns just named in the dense arrangement of its pinnules, which largely overlap each other; but it differs from them in the arrangement of the pinnæ, in the form of the pinnules, and in the character of the rhachis. It seems quite distinct from any of the ferns from the Devonian of Pennsylvania, &c., described by Lesquereux. The specimen figured is one in the collection of the Natural History Society of Portland.

In Mr. Richardson's collection, single pinnæ occur, and there are also many large stipes which may have belonged to this species.

(a) Terminal pinnule. (b) Lateral pinnules slightly magnified. Description.-Frond bipinnate; rhachis stout and longitudinally furrowed; pinnæ alternate; pinnules obliquely obovate, imbricate, narrowed at the base, and apparently decurrent on the petiole; nerves nearly parallel, dichotomous; terminal leaflet large, broadly obovate or lobed.

As above stated, terminal pinnules which may have belonged to this species occur in the St. John beds; but more

perfect specimens will be required to render this identification certain,

2. Lepidostrobus Richardsoni.-S. n.

Description.-Axis not distinctly preserved, form cylindrical ?-scales oblong with an obscure midrib.

I refer to the above genus with some hesitation, a well characterised but very puzzling organism, discovered by Mr. Richardson at Perry. It consists of an indistinct but apparently thick stem or axis, with equally pinnate leaves, which seem to have been thick and oblong and show traces of a midrib. It resembles a perfectly flattened Lepidostrobus, more than anything else; but it may have been a branch of a conifer with pinnate leaves.

In Mr. Richardson's collection from Perry, is a rounded and flattened object, 1 inch in diameter, apparently covered with thick pointed scales. It seems to be a Lepidostrobus quite distinct from the last.

4. Lepidodendron Gaspianum.-mihi.

In a specimen in the collection of the Natural History Society of Portland, there is a branch of Lepidodendron, 7 inches in length, inch in diameter at the larger end, and inch in dia

meter at the smaller. It is flattened and imperfectly preserved, but on comparison with my specimens from Gaspé, I cannot observe any specific difference. This species is evidently closely allied to L. nothum, Unger, and possibly could perfect specimens of both be obtained, they might prove to be identical. In the mean time however as the scars and leaves of L. nothum are unknown, it is difficult to institute a comparison.

5. Psilophyton princeps.―mihi.

Great numbers of slender bifurcating stems appear on the shales brought from Perry by Mr. Richardson. They are not well preserved; but it seems scarcely to admit of a doubt that they belong to this species, so characteristic of the Gaspé sand

stones.

6. Megaphyton?

A flattened stem two inches in diameter, irregularly ribbed and striated, appears to show a row of scars on the exposed side, as in the above named genus. The scars are not however well defined. The plant has a slender pyritised axis giving off a few bunches or bundles of vessels to the sides. The structure is very imperfect but was possibly scalariform.

7. Sternbergia.

In the collection with which I have been favored by the Natural History Society of Portland, is an impression of a Sternbergia not distinguishable from that of Dadoxylon Ouangondianum, of St. John, to which species it perhaps belonged. It retains no traces of the wood; but casts of sternbergia in the same naked condition often occur in the coal measures.

8. Aporoxylon.

Many fragments of carbonised wood showing aporous cells occur in the Perry sandstones: I refer them in the mean time to the above genus of Unger.

III. GASPÉ SANDSTONES.

From these rocks I have but one species to notice at present. It is that referred to in my former paper as probably a Knorria,*

Paper on Devonian Plants of Gaspé, Journal of Geological Society, Vol. XV.

but of which I have recently obtained better specimens which induce me to propose for it the name of

Fig. 11.-Fragment of shale from Gaspé.

(a) Selaginites formosus. (b) Smaller specimen of the same. Cordaites angustifolia. (d) Psilophyton princeps.

(c)

(a) Small specimen magnified. (b) Scale of larger specimen magnified.

Description.-Stems covered with flat broad angular imbricating scales of unequal size, and ornamented with minute scaly points.

The original specimen of this curious plant was a fragment of the bark on sandstone in the collection of Sir W. E. Logan. I have since discovered in the bituminous shale overlying the Devonian coal of Gaspé, and which abounds in vegetable fragments, several portions of flattened stems showing the characters more perfectly. The different sizes of the fragments and of the scales that clothe them would indicate that it was a branching or dichotomous plant. Their condition of preservation shows that