has formed itself through the greater development of one element which has become the "Haupt-Florenglied" (principal member of a Flora); such as, for instance, has occurred in the Flora of Australia,* and of the Cape. The rest of the genetic members have remained rudimentary. The Endemic species of European, Asiatic, and East Indian genera are, in the above-mentioned Floras, the representatives of these "Nebenglieder" (secondary members). Thirdly, that the species of fossil plants inclined much more to the formation of varieties than those of living plants, and that the varieties of the fossil species, for the most part, correspond with the species of existing Flora. I have proved this in the case the Pinus pulao-strobus, the varieties of which so entirely correspond with many of the recent Pinus species, that the former must be recognised as the original forms of the latter. At some future time, I hope to publish a demonstration of the genetic connexion of the varieties of many other Tertiary plants with species of plants in the living world. V.-Results relating to the Eocene Flora of Great Britain. The very extensive materials which I have had under examination were principally those of the collections of the British Museum and that of Mr. John S. Gardner, and I have here to express to Mr. H. Woodward and Mr. Carruthers, as well as to Mr. Gardner, my most grateful thanks for their willing aid. I desire, also, especially to acknowledge my deep obligation to the Royal Society, from which I have received a grant for the investigation of the Eocene Flora of Great Britain. Mr. Gardner has gained for himself well deserved acknowledgments for the important services he has rendered in discovering and obtaining a vast collection of the Eocene Flora of Great Britain, and it has given me great satisfaction to have been associated with him in the study of this fossil Flora. As the geology of the localities of the Eocene Flora of Great Britain has been already published by Mr. Gardner, I proceed at once to those results which the investigation of this Flora have, up to the present time, produced. These results can only be partially indicated now, as the comparing of the fossil Flora of Great Britain with other Floras will not be published until the investigations are completed. For the present, the monographic work of the Filices is finished in manuscript. The Eocene Flora of Great Britain is distinguished by a series of tropical forms of ferns. Of these are especially to be named the peculiar genera of Podoloma and Glossochlamys, which connect themselves mostly with tropical forms of Polypodium; then the peculiar genus Menyphyllum most nearly related to the tropical Aspidiacea. Ettingshausen, "Die genetische Gliederung der Flora Australiens," "Denkschriften der Wiener Akademie der Wissenschaften," Band xxxvii. + Ettingshausen, "Die genetische Gliederung der Cap-Flora," "Sitzungsber. der Wiener Akademie der Wissenschaften," Band lxxi. may be mentioned forms of Chrysodium and Lygodium. ace of the genus Gleichenia reminds us of the fern Flora of is period, while some species of Pteris and Phegopteris are ecies of the Miocene Flora. One fern, Asplenites allusos yet only known in the Fossil Flora of Sotzka, has also s predecessor. s of the Eocene Flora of Great Britain are enumerated as The Society then adjourned over the Christmas Recess to Thursday, January 9, 1879. Transactions. Presents, December 5, 1878. Bombay-Royal Asiatic Society, Bombay Branch. Journal. Vol. Brussels --Société Malacologique de Belgique. Annales. Tome IX. 1877. The Society. Vol. XXXIV. The Society. London-Geological Society. Quarterly Journal. The Institute. Royal Agricultural Society. Journal. Second Series. Vol. XIV. Part 2. 8vo. 1878. The Society. Royal Asiatic Society. Journal. New Series. Vol. X. Part 3. 8vo. 1878. Royal Medical and Chirurgical Society. The Society. Medico-Chirurgical Transactions. Vol. LXI. 8vo. 1878. Proceedings. Vol. VIII. No. 6. 8vo. 1878. The Society. Royal United Service Institution. Journal. Vol. XXII. No. 96. 8vo. 1878. Index to the Lectures and Papers contained in Vols. XI-XX. 8vo. 1878. The Institution. New Haven :-Connecticut Academy of Arts and Sciences. Transactions. Vol. III. Part 2. 8vo. 1878. The Academy. New York:-American Geographical Society. Bulletin. 1878. No. 2. 8vo. Sydney-Linnean Society of New South Wales. Vol. II. Part 3, 4. Vol. III. Part 1. 8vo. 1878. The Society. e:-Peabody Institute. Annual Report of the Provost to Trustees. 8vo. 1878. The Institute. -Astronomical Observations taken to the end of 1877 at Private Observatory of J. G. Barclay, Leyton, Essex. IV. 4to. London 1878. J. G. Barclay, F.R.A.S. -Nautical Almanac and Astronomical Ephemeris for 1882. 1878. The Admiralty. House. Fog Signals. Part 2. Further Correspondence Reports in relation to the utilisation of Gun Cotton and on Powder for Fog Signal purposes. folio. London 1878. The Trinity House. -Hon East India Company's Observatory. Meteorological rvations, made under the Superintendence of W. S. Jacob e years 1851-55. 4to. 1874. The India Office. :-Geological Survey of Canada. Report of Progress for - 1877. 8vo. 1878. The Survey. -Report on the Meteorological Service of the Dominion of da, for the year ended December 31st, 1877. 8vo. 1878. The Meteorological Office, Canada. con [U.S.]:-Commission of Fish and Fisheries. 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No. 1-2, 4-6. 8vo. List of Periodicals. 8vo. 1878. Geological Survey of India. The Society. Records. Vol. XI. Part 2-3. roy. 8vo. 1878. Contents and Index of the first ten Volumes of the Records. roy. 8vo. 1878. The Survey. Cardiff: Naturalists' Society. Report and Transactions. Vol. IX. 1877. 8vo. 1878. The Society. Chemnitz :-Naturwissenschaftliche Gesellschaft. Sechster Bericht. 8vo. 1878. The Society. Glasgow:-Philosophical Society. Proceedings. 1877-78. Vol. XI, The Institute. Musical Association. Proceedings. Fourth Session. 1877-78. 8vo. The Association. Society of Biblical Archæology. Transactions. Vol. VI. Part 1. 8vo. 1878. The Society. Munich:-Koeniglich Bayerische Akademie der Wissenschaften. Abhandlungen. Hist. Classe. Band XIV. Abth. 1. Math. Phys. Classe. Band XIII. Abth. 1. 4to. München 1878. Sitzungsberichte, Philos.-philol. und Hist. Classe. 1878. Heft 1-4. Math. Phys. Classe. 1878. Heft 1-3. 8vo. Almanach für das |