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" The upper valve is almost invariably 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,... "
The Student's Elements of Geology - Page 21
by Sir Charles Lyell - 1885 - 641 pages
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Elements of Geology

Sir Charles Lyell - Science - 1838 - 582 pages
...,„ Crania detached. which were carried a way. 1 lieu the young Crania adhered to the bared shell, and perished in its turn ; after which the upper valve was separated from the lower before the Echinus became enveloped in chalky mud. It may be well to mention one more illustration of the manner...
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Elements of Geology, Volume 1

Sir Charles Lyell - Geology - 1841 - 946 pages
...vmlve of the' Crania attached. and lost its spines, which were 6. Upper valve of the crania detached. carried away. Then the young Crania adhered to the...upper valve was separated from the lower before the Echinus became enveloped in chalky mud. It may be well to mention one more illustration of the manner...
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Elements of Geology, Volume 1

Sir Charles Lyell - Geology - 1841 - 486 pages
...from youth to age, then died with lower valve of the ' >d lost its sPines> which were Cromadeuched. Crania adhered to the bared shell, grew, and perished...upper valve was separated from the lower before the Echinus became enveloped in chalky mud. It may be well to mention one more illustration of the manner...
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Elements of Geology

Sir Charles Lyell - Geology - 1845 - 338 pages
...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 the young a. EcMntut from the Crania adhered to the bared shell, and perishva?ve'oftthe'Cra7ii'i ed 'n its turn...
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A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1851 - 598 pages
...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...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...
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A Manual of Elementary Geology; Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1852 - 578 pages
...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...turn; after which the upper valve was separated from Crania attached. the lower before the Echinus became enveloped in Crania detached. chalky III 11i1....
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A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1854 - 556 pages
...clearly that the sea-urchin first lived from youth to age, then died and lost its spines, which wciv carried away. Then the young Crania adhered to the...perished in its turn; after which the upper valve was attached. separated from the lower before the Echinus became !>. Upper vaKe of the r . Crania detached,...
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A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1855 - 686 pages
...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...perished in its turn ; after which the upper valve was attached. separated from the lower before the Echinus became ». Upper valve of th« * Crania detached,...
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Elements of Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1866 - 910 pages
...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...young Crania adhered to the bared shell, grew and _j" Crania perished in its turn; after which the upper valve was attached. separated from the lower...
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Elements of Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - Geology - 1866 - 866 pages
...r T . • 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 the from the young Crania adhered to the bared shell, grew and vafve'ofthe Crmia perished in its turn ;...
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