IV.—Contributions to the Tertiary Geology and Palæontology of The

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230 Reviews—Tornquist's Tnlobite Fauna. the division with Actinoeamax ventricosus in the Kristianstad district. Fifty-five species and varieties are enumerated in the accompanying list, of which only a small proportion appears to be common to our English Chalk. The genera represented are Crania (13 sp.) ; Rhyn- chonella (10 sp.); Terebratula (12 sp.); Terebratulina (6 sp.); Theci- diurn (3 sp.); and IAngula, Waldheimia, Trigonosema and Terebrntella, each with a single species. Lundgren acknowledges that he has defined the species in a more limited sense than Davidson, and it is quite possible that our great English authority would not entirely indorse the specific value assigned to all the forms here described; still the characters assigned to the species and varieties are very care- fully and fully enumerated, and as all the forms are thoroughly and of necessity faithfully illustrated in the accompanying photographed plates, the work will prove of great value in comparing the Creta- ceous Brachiopoda of Sweden with those of our own and other countries. G. J. H.

III.—UNDERSOKNINGAE OFVER SILJANSOMRADETS TEILOBITSFAUNA AF Sv. LEONH. TORNQUIST. Med tre Taflor. AN EXAMINATION OP THE TRILOBITE FAUNA OF THE DISTEICT OF SILJAN. By Sv. LEON TORNQUIST. With three Plates. 4to. pp. 101. HIS monograph contains the results of a detailed examination of T the Trilobites discovered in the Silurian basin of Siljan in Dalecarlia. In all 113 species and varieties are enumerated, includ- ing many new forms, belonging for the most part to very minute types, which have hitherto escaped notice, probably on account of their small dimensions. As a general rule the Trilobites are very fragmentary, and the descriptions mainly rest on their detached heads and pygidia. A tabulated list shows their respective stratigraphical distribution in the series of beds which range from the Phyllograptus- shales up to the Leptasna-Kalk, which the author believes to be relatively slightly older than the Wenlock Shale. The new species are all figured, and the careful manner in which the various forms are described renders this work of special value for comparison to students of this group, as it well illustrates the distribution of the Trilobites in a particular limited area. G. J. H»

IV.—CONTRIBUTIONS TO THE TERTIARY GEOLOGY AND PALEONTOLOGY OP THE UNITED STATES. By ANGELO HEILPRIN. 4to. pp. 1-4 (unnumbered) and 1-117. One Plate. (Philadelphia, the Author, 1884.) HE volume is a prefaced reprint of several independent treatises, T viz.—"I. The Tertiary Geology of the Eastern and Southern United States" (Journ. Acad. Nat. Sci. Phil. 1884, 2nd ser. vol. ix. pp. 115-154); "II. On the Eelative Ages and Classification of the Post-Eocene Tertiary Deposits of the Atlantic Slope " (Proc. Acad. Nat. Sci. Phil. 1882, vol. xxxiv. pp. 150-186) ; " III. On the Strati- graphical Evidence afforded by the Tertiary Fossils of the Peninsula

POST- FOREIGN EQUIVALENTS. PLIOCENE.

Pliocene. ? ?

Carolinian Deposits of North and South Diestian ? (Upper Atlantic Carolina (" Sumpter " epoch Miocene.) of Dana).

Virginian Deposits of Virginia, and the Probably of the age of the [Middle Atlantic newer group in Maryland "Second Mediterranean" of Miocene.) ("Yorktown" epoch,inpart, the Austrian geologists, and of of Dana). the faluns of Touraine; Caroni Miocene. beds of Trinidad; and Miocene of San Domingo, Jamaica, and Cuniana P

Older Miocene deposits of Probably (or at least partially) Marylandian Maryland, and possibly the the equivalent of the " First (Lower Atlantic lower beds in Virginia Mediterranean" of the Aus- Miocene.) (•'Yorktown" epoch, in trian geologists and of the part, of Dana). faluns of Leognan and Saucats.

Strata characterized byspecies Aquitanian. Deposits of Crosara of Orbitoides. Vicksburg and Castel Gomberto (Vicen- beds, Florida nummulitic tin), Uligocene of the Mayence Oligocene. Orbitoitie. beds, etc. Basin, sands of Fontainebleau, lower limestone of Malta, Fernando beds on Trinidad, Antigua, Chert, St. Bartholo- mew Oligocene.

Jackson beds of Mississippi. Barton Clay (Bartonian). Sands Jacksonian. "White Limestone" of of Beaucliamp ? Alabama.

Fossiliferous arenaceous de- Age of the " Calcaire Grossier " Claibornian. posit of Claiborne, Ala., etc. of France (Parisian). Eocene. Beds below the true Claibor- Londonian f nian on the Alabama liiver, "Chalk Hills" of the Buhrstone. southern part of the State, etc. " Siliceous Claiborne " (Hilgard) of Mississippi. Maryland Eocene, in part f

Lignite, sands and clays situ- Thanetian ? Bognor rock ? ated at the base of the Tertiary Series in Alabama, Eo-Lignitic. etc. Marlborough and Pis- cataway beds of Maryland ? Shark liiver deposits of Xew Jersey.

Downloaded from https://www.cambridge.org/core. INSEAD, on 30 Sep 2018 at 06:21:38, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0016756800151982 232 Reports and Proceedings— of Maryland" (ibid., 1880, vol. xxxii. pp. 20-33); "IV. On the Occurrence of Nummulitic Deposits in Florida, and the Association of Nummulites with a Freshwater Fauna" (ibid. 1882, vol. xxxiv. pp. 189-193) ; "V. A Comparison of the Eocene Tertiary Mollusoa of the South-Western United States and Western Europe in relation to the Determination of Identical Forms " (ibid. 1879, vol. xxxi. pp. Ml 1-216) ; and " VI. On the Age of the Tejou Eocks of California, and the Occurrence of Ammonitic Remains in Tertiary Deposits " (ibid. 1882, vol. xxxiv. pp. 196-214). In the first of these Mr. Heilprin collects the essence of the scattered literature of, and summarizes his own investigations upon, the Atlantic and Gulf Territories. The deposits prevail over a zone of 25,200 miles wide, skirting the coast from northern New Jersey to Mexico, augmented by the Floridian peninsula and the Mississippi embayment. In the north the beds are mainly incoherent sands (siliceous, calcareous, and glauconitic), clays, and marls, while in the south lithification is common, particularly in the older members. In general, strikes are roughly parallel to the coasts, and the gentle dips seaward. Only slight and simple diastrophism has affected the region since Tertiary deposition was initiated. The author's conceptions of stratigraphic sequence and equivalence are expressed in the taxonomio table, reprinted on p. 231; the distribution of the several members recognized is approximately shown on a small scale map. In text and map, Hilgard's doubtful reference of the "Grand Gulf" formation to the Miocene is adopted; but the interesting Pliocene or early Quaternary " Port Hudson " is neglected, as is also the Pliocene (?) " Glass Sand " of New Jersey and Long Island. Identification and correlation are essentially palseontologic ; the diastrophic and geomorphic pbenomena whereby the formations in question must ultimately be coordinated are ignored; and correlation with the western territories is not attempted. The scope of the subordinate articles is indicated by their titles. Their substance is incorporated in the general discussion. The volume is unfortunately without index or other conspectus of contents than a list of articles, the data for the discussions are predominantly bibliothecal, the style is verbose, and the map is crude; yet in its assimilative function the leading treatise will prove valuable alike to foreign readers and local investigators. W. J. M.

BEPOBTS A.2STJD PBOCEEDIK"G8.

I.—GEOLOGICAL SOCIETY or LONDON. I.— March25, 1885.—Prof. T. G. Bonney, D.Sc, LL.D., F.R.S., President, in the Chair.—The following communications were read : 1. " On the Relationship of Ulodendron, Lindley and Hutton, to Lepidodendron, Sternberg, Boihrodendron, Lindley and Hutton, Sigillaria, Brongniart, and Bhytidodendron, Boulay." By Robert Kidston, Esq., F.G S. The author commenced by expressing an opinion that the so-