Introductory Text-book of GeologyW. Blackwood and Sons, 1869 - 194 strani |
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Zadetki 1–5 od 33
Stran 9
... composed , to describe their appearance and relative positions , to investigate their nature and mode of formation , the changes they have undergone and are still undergoing , and generally to dis- cover the laws which seem to determine ...
... composed , to describe their appearance and relative positions , to investigate their nature and mode of formation , the changes they have undergone and are still undergoing , and generally to dis- cover the laws which seem to determine ...
Stran 18
... composed , and vitally in its being indispensable to vegetable and animal life . Thus winds blow and drift about all loose material , carrying them away from one spot , and piling them up in another . In this way extensive tracts ( sand ...
... composed , and vitally in its being indispensable to vegetable and animal life . Thus winds blow and drift about all loose material , carrying them away from one spot , and piling them up in another . In this way extensive tracts ( sand ...
Stran 23
... composed of the silicious remains of infusorial organisms ( so called from being abundantly found in putrid vegetable infusions ) . These flinty cases are of extreme minuteness ; but being aggregated in count- less myriads , they ...
... composed of the silicious remains of infusorial organisms ( so called from being abundantly found in putrid vegetable infusions ) . These flinty cases are of extreme minuteness ; but being aggregated in count- less myriads , they ...
Stran 24
... composed of various beautifully- formed corals , but a barrier of limestone more or less compact , mingled with sand , shells , sponges , sea - urchins , and other marine exuvia ( Lat . cast - off crusts , shells , and similar remains ...
... composed of various beautifully- formed corals , but a barrier of limestone more or less compact , mingled with sand , shells , sponges , sea - urchins , and other marine exuvia ( Lat . cast - off crusts , shells , and similar remains ...
Stran 29
... composed , and in one form or other we pass through them wherever we go beneath the surface- whether tunnelling through the hills , or sinking coal - mines in the level valleys . How these rocks are arranged , and of what they are composed ...
... composed , and in one form or other we pass through them wherever we go beneath the surface- whether tunnelling through the hills , or sinking coal - mines in the level valleys . How these rocks are arranged , and of what they are composed ...
Pogosti izrazi in povedi
abundant accumulations agency aqueous arrangement ATLAS basalt beds bituminous boulders building-stone calcareous Cambrian carboniferous chalk chemical chiefly clay clay-slate coal coal-measures coloured compact composed composition conglomerates coral-reefs corals cretaceous crust crustacea crystalline deposits districts drift earth Edition encrinites England eocene epoch estuaries existing felspar fishes formation forms fossils frequent fresh-water GEOGRAPHY geologists Geology globe gneiss granite gravel greenstone grits groups igneous rocks interstratified islands lakes laminated land Laurentian lava layers less lias lignite lime limestone lower marine marls masses Mesozoic Metamorphic mica mica-schist mineral mountain limestone numerous occur ocean Old Red Sandstone oolite origin PALEOZOIC peculiar period Permian plants and animals present quartz remains of plants reptiles rivers rocky sand schists Scotland seams seas sedimentary shales shell-fish shells silicious silt Silurian slates slaty species stone strata stratified rocks structure surface termed tertiary TEXT-BOOK texture thick tion trap trappean Triassic upheavals upper vegetable volcanic wealden zoophytes
Priljubljeni odlomki
Stran 193 - The Geological Examinator. A Progressive Series of Questions, adapted to the Introductory and Advanced TextBooks of Geology. Prepared to assist Teachers in framing their Examinations, and Students in testing their own Progress and Proficiency. By the SAME.
Stran 197 - A New and Enlarged Edition. Constructed from the best materials, and embodying the results of the most recent investigations, accompanied by a complete INDEX OF PLACES, in which the proper quantities are given by T.
Stran 193 - It has not been our good fortune to examine a text-book on science of which we could express an opinion so entirely favourable as we are enabled to do of Mr Page's little work."— Athenceum., ADVANCED TEXT-BOOK OF GEOLOGY, DESCRIPTIVE AND INDUSTRIAL.
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Stran 193 - Of singular merit for its clearness and trustworthy character." — Standard. Third Edition, Enlarged. GEOLOGY FOR GENERAL READERS. A Series of Popular Sketches in Geology and Palaeontology. By the Surne. 6s. "This is one of the best of Mr page's many good books. It is written in a flowing, popular style. Without illustration or any extraneous aid, the narrative must prove attractive to any intelligent reader."— Geological Magazine.
Stran 193 - The divisions of the subject are so clearly defined, the explanations are so lucid, the relations of one portion of the subject to another are so satisfactorily shown, and, above all, the...