 ... wanting, though occasionally found in a perfect state of preservation in the white chalk at some distance. In this case, we see clearly that the sea-urchin first lived from youth to age, then died and lost its spines, which were carried away. Then...  Elements of Geology - Seite 47von Sir Charles Lyell - 1838 - 543 SeitenVollansicht - Über dieses Buch
 | Sir Charles Lyell - 1851 - 602 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the bared shell, grew, and perished in its turn ; after which the upper valve was separated from the tue lower before the Echinus became enveloped in chalky mud. It may be well to mention one more illustration... | |
 | Sir Charles Lyell - 1852 - 578 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the bared shell, grew and perished in its turn; after which the upper valve was separated from Crania attached. the lower before the Echinus became enveloped in Crania detached. chalky III 11i1.... | |
 | 1868 - 978 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the" bared shell, grew and perished in its turn ; after which, the upper...before the Echinus became enveloped in chalky mud."* A specimen in the Museum of Practical Geology, in London, still further prolongs the period which must... | |
 | 1868 - 582 Seiten
...lost its spines, ' which were carried away. Then the ' young Crania adhered to the bared ' shell, grew and perished in its turn ; ' after which, the upper...lower, before the " Echinus became enveloped in chalky "mud."1 A specimen in the Museum of Practical Geology, in London, still further prolongs the period... | |
 | Sir George Grove, David Masson, John Morley, Mowbray Morris - 1868 - 570 Seiten
...lost its spines, " which were carried away. Then the " young Crania adhered to the bared " shell, grew and perished in its turn ; " after which, the upper valve was " separated from tho lower, before the " Echinus became enveloped in chalky " mud." * A specimen in the Museum of Practical... | |
 | Thomas Henry Huxley - 1870 - 400 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the bared shell, grew and perished in its turn ; after which, the upper...lower, before the Echinus became enveloped in chalky mud."1 A specimen in the Museum of Practical Geology, in London, still further prolongs the period... | |
 | Thomas Henry Huxley - 1870 - 444 Seiten
...Then the young Crania adhered to the bared shell, grew and perished in its turn ; after which, thf: upper valve was separated from the lower, before the Echinus became enveloped in chalky mud." * A specimen in the Museum of Practical Geology, in London, still further prolongs the period which... | |
 | Sir Charles Lyell - 1871 - 656 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the bared shell, grew and perished in its turn ; after which the upper valve was separated from the lower before the Auanchytex became enveloped in chalky mud. It may be well to mention one more illustration of the manner... | |
 | Thomas Henry Huxley - 1886 - 350 Seiten
...and lost its spines, which were carried away. Then the young Crania adhered to the bared shell, grew and perished in its turn ; after which, the upper...before the Echinus became enveloped in chalky mud." * A specimen in the Museum of Practical Geology, in London, still further prolongs the period which... | |
 | Thomas Henry Huxley - 1894 - 428 Seiten
...and lost its spines, which were carried away. Then the young Crania, adhered to the bared shell, grew and perished in its turn ; after which, the upper...lower, before the Echinus became enveloped in chalky mud."1 A specimen in the Museum of Practical Geology, in London, still further prolongs the period... | |
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