560                                                 SILUEIA.

U.—The Occurrence of Eozoon Canadense in Limestone of the Laurentian
System in Finland (pp. 13 &c.).

In the BuUetin de I'Acad. Imp<5r. des Sciences de St. P^tersbourg, vol. x. No. 1,
p. 151, Prof Pusyrewski describes the occurrence of Eozoon Canadense in the
limestone of Hopunwara in Finland. He describes the rocks in the Government
of Wiborg and vicinity as consisting of:—a great lower series of orthoclase-
gneiss and hornblende-rock -, and an upper series of gneiss and schists, divisible
into two groups, in the lower beds of each of which are bands of marble. The
limestone (at Hopunwara) of the lower of these two subdivisions contains ser¬
pentinous bands, granules, and filaments, which Prof. Pusyrewski recognizes as
being Eozoonal in structure, and exactly similar to those described by Logan,
Dawson, and Carpenter, proving that these rocks of Finland correspond in the
main to the Laurentian system of Canada.

V.—Lingulella in the Upper Cambrian RocJcs of St. Davidis (pp. 24 &c.).

At the Meeting of the Geological Society on June 19th, 1867, Mr. J. W. Salter
read an account of the discovery of a minute Lingulella in the red Cambrian
rock of St. David's, which there xmderlies the ' Primordial Silurian' (mihi). Ac¬
cording to my view (and I am entitled to judge by acquaintance with both
districts) the rock in which this smaU fossil was found may be paralleled in age
with the uppermost or red portion of my original ^ Cambrian' of the Longmynd
(1835). This imique Lingulella is pronounced by Mr. Salter to be of the same
species as one commonly foimd with Paradoxides in the zone which I term ^ Pri¬
mordial Silurian,' viz. L. ferruginea (Salt.) j but Dr. Hicks distinguishes it as
var. ovalis.