The Quarterly Journal of the Geological Society of London, Volume 37The Society, 1881 - Electronic journals Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Page 54
... Menevian of St. David's , and also constituting the rocks of Harlech , Llanberris , Ban- gor , and the Longmynds . We have hitherto discovered no life - remains in the Archæan rocks of the British Islands , our so - called Lauren- tians ...
... Menevian of St. David's , and also constituting the rocks of Harlech , Llanberris , Ban- gor , and the Longmynds . We have hitherto discovered no life - remains in the Archæan rocks of the British Islands , our so - called Lauren- tians ...
Page 62
... Menevian group , which has yielded nearly fifty species : yet in the Harlech , Barmouth , and Dolgelly areas the Menevians immediately succeed , are conformable to the underlying barren unfossiliferous grits , and exhibit the first ...
... Menevian group , which has yielded nearly fifty species : yet in the Harlech , Barmouth , and Dolgelly areas the Menevians immediately succeed , are conformable to the underlying barren unfossiliferous grits , and exhibit the first ...
Page 63
... Menevian group . Plutonia Sedgwickii , Conocoryphe Lyellii , and Microdiscus sculptus have not been detected in any higher horizon , and P. Harkness only in the succeeding red , grey , and purple flaggy sandstones , where it is ...
... Menevian group . Plutonia Sedgwickii , Conocoryphe Lyellii , and Microdiscus sculptus have not been detected in any higher horizon , and P. Harkness only in the succeeding red , grey , and purple flaggy sandstones , where it is ...
Page 64
... Menevian , and Lingula - flag forms ever appearing above the Lingula - flags ; but assuming that the Tremadoc rocks terminate the lower division of the Cambrian series , they must be acknowledged to be of value . The species of ...
... Menevian , and Lingula - flag forms ever appearing above the Lingula - flags ; but assuming that the Tremadoc rocks terminate the lower division of the Cambrian series , they must be acknowledged to be of value . The species of ...
Page 65
... Menevian rocks of St. David's ) have been described . Three of the four species belong to the Har- lech beds , below the Menevian ; and all four occur in the Menevian . Protospongia fenestrata , Salt . , is also from the Lower Lingula ...
... Menevian rocks of St. David's ) have been described . Three of the four species belong to the Har- lech beds , below the Menevian ; and all four occur in the Menevian . Protospongia fenestrata , Salt . , is also from the Lower Lingula ...
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Common terms and phrases
12 species 9 genera Actinozoa Agnostus Annelida Asaphus beds Brachiopoda Britain Bryozoa Calymene Cambrian Caradoc Carboniferous Limestone Carboniferous rocks Cephalopoda Coal-measures Conocoryphe Crustacea David's Davisii deposits Devonian distribution division Echinodermata England Etheridge F.R.S. Prof fauna Fellows formation forms fossils Gasteropoda genera genus Geol Geological Society géologique Geologische Graptolites grits Harlech Heteropoda Hicks Homfrayi horizon Hydrozoa Ireland known Lamellibranchiata Lingula Lingulella Llandeilo Llandovery London Longmynd Lower Lingula-flags Lower Llandovery Lower Ludlow Lower Tremadoc M'Coy Medal Menevian Murchison North Devon North Wales Note number of species Obolella Old Red Sandstone Orthis Orthoceras palæontological Palæozoic Paradoxides Phill Professor Pteropoda Purchased Ramsey Island represented researches Salt Salter Scotland Sedgwick shales Shropshire Silurian Skiddaw slates South Wales species occur species pass St.-David's Stiperstones strata stratigraphical terrain Tremadoc Tremadoc rocks Trilobita Ueber Upper Devonian Upper Lingula-flags Upper Llandovery Upper Ludlow Upper Tremadoc Wenlock Woolhope yielded Yoredale zoological
Popular passages
Page 121 - FREDERICK M°CoY, FGS One vol., Royal 410. Plates, /i. is. A CATALOGUE OF THE COLLECTION OF CAMBRIAN AND SILURIAN FOSSILS contained in the Geological Museum of the University of Cambridge, by JW SALTER, FGS With a Portrait of PROFESSOR SEDGWICK.
Page 39 - gave expressions adapted for working all the problems that a crystal can present, and it gave them in a form that appealed at once to the sense of symmetry and appropriateness of the mathematician ... he thus placed the keystone into the arch of the science of crystallography
Page 40 - will long be cited as a model of accuracy." He was subsequently a member of a new Royal Commission for " examining into and reporting on the state of the secondary standards, and for considering every question which could affect the primary, secondary, and local standards.
Page 14 - to be cast iu bronze and to be given annually ' (or from time to time) 'as a mark of honorary distinction and as an expression on the part of the governing body of the Society that the Medallist (who may be of any country or either sex) has deserved well of the Science...
Page 229 - Staffordshire, was elected a Fellow of the Society. The following communications were read : — 1.
Page 12 - To promote researches concerning the mineral structure of the earth, and to enable the Council of the Geological Society to reward those individuals of any country by whom such researches may hereafter be made,' — ( such individual not being a Member of the Council.
Page 40 - In 1843 a Committee was appointed to superintend the construction of the new Parliamentary standards of length and weight, of which Professor Miller was a member, and to him was confided the construction of the new standards of weight. In the " Philosophical Transactions " for 1856 he describes at length " The operations for restoring the value of the Old Standard of Weight, for constructing the New Standard of a different value, for constructing various derived Standards, and for establishing the...
Page 299 - Composition des sables de Bracheux et mode d'origine de l'argile plastique, premier produit d'une émanation terminée par le dépôt du calcaire de Mortemer, d'après des coupes du chemin de fer de Compiègne (Oise), à Roye (Somme).