A monograph of the British Graptolitidę

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William Blackwood and Sons, 1872 - 133 pages
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Page ii - A Manual of Palaeontology, for the Use of Students. With a General Introduction on the Principles of Palaeontology.
Page ii - NICHOLSON. A Manual of Zoology, for the use of Students. With a General Introduction on the Principles of Zoology. By HENRY ALLEYNE NICHOLSON, MD, D.Sc., FLS, FGS, Regius Professor of Natural History in the University of Aberdeen.
Page 130 - BODIES consisting of straight or flexuous stipes (simple or conjoined at base?), with alternating and widely diverging branches : branches long, simple or ramose, in the same manner as the stipe. Substance fibrous or striate; the main stipe and branches marked by a longitudinal central depressed line, indicating the axis. Cellules or serratures unknown.
Page ii - Medical Press and Circular. By THE SAME AUTHOR. INTRODUCTORY TEXT-BOOK OF ZOOLOGY, FOR THE USE OF JUNIOR CLASSES. With 127 Engravings, 35. 6d. " Very suitable for junior classes in schools. There is no reason why any one should not become acquainted with the principles of the science, and the facts on which they are based, as set forth in this volume.
Page 127 - An enlargement of one of the branchlets, showing the cellules. c. The main stipe and some of the principal branches, natural size. There is a swelling or protuberance at the base or radicle, one side of which is broken off FOSSILS 2. 1. Lingula
Page 128 - Flabellate fronds, with numerous slender bifurcating branches proceeding from a strong stem or axis. Branches and divisions celluliferous on one side, the opposite side striate ; sometimes distantly and irregularly united by transverse dissepiments.
Page 126 - Frond plant-like, rooted ? simple or branching. Branches and branchlets plumose, the pinnules rising alternately on opposite sides of the branches ; celluliferous on one face only : branches cylindrical or flattened. Substance corneous, dense ; apparently smooth exteriorly, or corrugated by compression, or during fossilization.
Page 127 - ... flabellate ?). Branches celluliferous on one side : cellules appearing sometimes as simple indentations on the surface, and sometimes distinctly angular, with the denticles conspicuous. In some specimens the cellules are indicated by prominent pustule-like elevations, arranged along the centre, or in subalternate order on one face of the branch.
Page 14 - Report of Progress of the Geological Survey of Canada for 1874-75." Dr. Ells, also, in the "Report of Progress...
Page 14 - Geological Survey of Canada — Figures and Descriptions of Canadian Organic Remains. Decade II. Graptolites of the Quebec Group. By James Hall. 8vo vol.

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