2382 0. Reviews— Geological Survey of Ireland. 
(22) Reed':. Ann. §. African Mus., vol. iv, pt. 6, No. 11 (1904), pp. 289-272, 
pls. XXK-XEXIL. 
(23) Reed: Grou. Mac., Dec. V, Vol. III (1906), pp. 301-310, pls. xvi, xvii. 
) Tchihatcheff :L’ Asie Mineure, Paléont. (by De Verneuil), 1866, Faune Devon., 
) 
(25 Lorenz':' Zeitschr. deut. geol. Gesell., vol. lvii (1905), pp. 438-497 ; vol. lvii 
(1906), p. 102. 
(26) Frech: Leth. Paleoz., 11, Bd. ii (1897-1902), pp. 235-240, map iil. 
(27) Schuchert : American Geologist, vol. xxxii (1903), pp. 137— 162, with two maps. 
(28) Lebedew: Mem. Com. Géol. St. Petersb. , vol. xvii (1902), No. 2. 
(29) Forbes: Quart. Journ. Geol. Soc., vol. xvii (1861), p. 65, pl. iv, fig. 8 
(80) Walther: Zeitschr. deut. geol. Gesell., vol. xlix (1897), pp- 209-278. 
(31) Williams, ‘‘ The Correlation of Geological Faunas’’: Bull. U.S. Geol. Sury., 
1903, No. 210. 
(32) Haug: Bull. Soc. Géol. France, vol. xxviii (1900), pp. 617-711. 
(33) Schwarz: Journ. of Geol., vol. xiv, No. 2 (1906), pp. 81-90. 
Corrigendum.—On p- 170 in the April number of this Magazine the species of 
Phacops mentioned as ‘‘a form compared with Ph. rana, Green by 
Kayser,’’ has. been described by Mr. I. Thomas (10, p. 16) as a new species under the 
name of Ph, argentinus. 
REVI HW Ss. 
I.—New .Memorr anp Map oF tHE GrotogicaL Survey oF IRELAND, 
Tue GroLocy or tHE Counrry arounp Limerick. By G. W. 
Lamptugu, F.R.S., S. B. Winxrinson, J. R. Kitroz, A. McHenry, 
M.R.IA., H. J. Stymour, B.A., F.G.S., and. W. B. WerieHt, 
B.A., F.G.S. 1907. 94” x 6”; pp. vi-+ 120, with 7 photo- 
graphic process plates and 11 figures a text. pee 2s. [In 
(Drift Series), parts of Sheets 1438 i 144, Baloeegnicits 
published 1906, price 1s. €d. | 
HE area comprised in the map and described in the memoir 
‘ amounts to 216 square miles, and includes Castleconnell, 
Caherconlish, Adare, and of course Limerick. ‘The river Shannon 
enters the area on the north-east, bends westward, and flows for 
20 miles generally westward. 
_ The solid geology is described by Mr. J. R. Kilroe. The oldest 
rocks shown are Upper Silurian Llandovery beds, close to the northern 
margin of the map. They are calcareous shales and grits and clay 
rocks, and have been intensely affected by pre- -Carboniferous com- 
pression, which .produced cleavage and here and there violent 
contortion along nearly east and west axes. The highly contorted 
and fractured Silurian beds were subjected to extensive denudation 
prior to the deposition of Upper Old Red strata, their upturned 
truncated edges forming the floor upon which the latter were laid 
down. The Upper Old Red Sandstone is usually a coarse yellow 
quartzose grit, sometimes conglomeratic and sometimes calcareous, 
and often having greenish sandy shale partings between the beds. 
It overlies the Silurian rocks near the north-west margin of the area, 
and forms the foothills of the Slievefelim range at the eastern margin. 
It conformably underlies the Lower Carboniferous series, but fossil 
evidence of,its age is wanting. 
The Carboniferous Lower Siimeccone Shale is about 50 feet thick, 
and forms a narrow band, 8 miles long and almost wholly concealed 
