Proceedings of the Yorkshire Geological and Polytechnic Society, Band 7 |
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ambulacral animals appears Barnsley bones boulder clay Bradford Bridlington Brighouse Carboniferous carried-"That Cave cavity chalk Chalky Gravel chamber character cliff coal measures containing Creswell Ctenodus Dakyns dales Davis denuded deposits depth district Driffield drift feet Filey Bay fish fissure fossil fragments ganoids genus Geol Geological Survey grit Gypsum Halifax Hall Headingley hills Hole inches interesting laminated layers Leeds limestone lower Malham Malham Tarn Marl Marquis of Ripon masses meeting Messrs Miall Middlesbrough miles millstone grit occur paper pebbles plates Polyt present probably Proc Prof Purple Boulder Clay Purple Clay Raygill Red Sandstone remains Ripon river rocks sand Sandstone seam seconded Secretary seen shaft Shales side Silurian Skipton slope Society species specimens Speeton spines stalagmite stone strata surface teeth thick thin upper valley veins Ward whilst yards York Yorkshire
Beliebte Passagen
Seite 86 - It is with great regret that we have to record the death of seven of our members, namely, Henry Brown, of Daisy Hill, Bradford; James Brown, Rossington; J.
Seite 195 - America, the Indian archipelago, Polynesia, and Australia, and yet know of only one Ganoid, the Sturgeon, a fish so unlike the majority of its congeners that a naturalist might be well acquainted with almost all the fossil Ganoids and yet not recognize a Sturgeon as a member of the group, it will not seem difficult to admit the existence of a Teleostean among the Devonian Ganoids, even though that Teleostean should in some, even important, points differ from those with which we are familiar.
Seite 192 - ... osseous centres, but not completely ossified, a similar structure to the bony parts of Pleuracanthus (Diplodus). Extending from the base, there is a mass of similar bony matter. Contiguous to the spine this is produced into two or three short denticles. It then becomes thinner, but again developes into a mass which may very well have served as the base of a second spine, if one were present. There is no evidence, ^however, of a second spine remaining on the present specimen ; it has rather the...
Seite 369 - The upper parts of the moorland gills, and much of what is now the rcoors, must formerly have made a beautiful appearance with its light gauze-like forest of birch and mountain ash. The last surviving example on any considerable scale is preserved in Birk Gill, a tributary of the river Burn.
Seite 99 - On the Upper Limit of the essentially Marine Beds of the Carboniferous Group of the British Isles and adjoining Continental districts; with suggestions for a fresh Classification of the Carboniferous Series.
Seite 310 - that it is desirable that there should be a uniform system of recording Church and Churchyard Inscriptions and that Mr. Nevill, Mr. Partridge and Mr. Bruce Bannerman, with power to add to their number, be appointed a Committee to draw up a scheme.
Seite 14 - ... or 1'49. This exactly corresponds with that of analcime, with which its other optical characters agree. Another colourless mineral, also filling cavities, was found to have the indices and other characters of calcite. A third colourless mineral, evidently an original constituent, was seen to have a comparatively feeble double refraction, and its index was found to be I'd.
Seite 404 - ... zone. This is no doubt a most important difference, and one to which we are disposed to attach considerable weight. The form of the bundles, and presence of the cambinm, seem to indicate that the fossil plant was capable of growing in diameter in the same manner as an ordinary dicotyledon, but this can hardly be said of the modern Myriophyllum. For this addition to our Fossil Flora, we have once more to record our thanks to our indefatigable friend, Mr. James Binns, of Warley, near Halifax, who...
Seite 13 - ... amount of balsam of the same real thickness as that of the mineral : the effects of the balsam below and above it, and of the covering-glass, being thus entirely eliminated. If, then, the index of the balsam be m, we can easily calculate that of the mineral (/') from the following equation : — t±d In the case of the hard and brittle balsam used to fasten down the specimen, the value of m is about 1/54 ; but, if there be any doubt about the true index, it can be ascertained by special measurements....
Seite 136 - It seems presumptuous to differ from so high authorities as to the conclusion drawn ; yet, if I have stated the case fairly in the three quotations above given, I confess that I have grave doubts on the subject, so far as regards the chalk area, where there are neither running streams on the surface of the valleys nor any subterranean, as far as can be ascertained, in the same lines. Speaking of the Wold dales, Professor Phillips writes : " Where several of these valleys meet they produce a very...