The Medals of Creation: Or, First Lessons in Geology, and in the Study of Organic Remains, Svazek 1H.G. Bohn, 1844 - Počet stran: 1016 |
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Strana 221
... sponges perform . In its earliest stage the sponge gemmule is of a spheroidal shape , and covered with vibratile ... Sponges are arranged in four groups according to their structure , viz.— Fresh - water Sponges . SPONGILLA : siliceous ...
... sponges perform . In its earliest stage the sponge gemmule is of a spheroidal shape , and covered with vibratile ... Sponges are arranged in four groups according to their structure , viz.— Fresh - water Sponges . SPONGILLA : siliceous ...
Strana 222
... SPONGES IN CHALK AND FLINT . - From the dura- bility of the tissue of the flexible sponges , and the imperish- able nature of those which have a siliceous or calcareous endo- skeleton or framework , their fossil remains generally occur ...
... SPONGES IN CHALK AND FLINT . - From the dura- bility of the tissue of the flexible sponges , and the imperish- able nature of those which have a siliceous or calcareous endo- skeleton or framework , their fossil remains generally occur ...
Strana 223
... sponges occur in the chalk give rise to many beautiful and highly instructive fossils , as we shall point out in the ... sponges that consist of a fibro - reticulated porous mass , destitute of regular tubes or canals : the form ...
... sponges occur in the chalk give rise to many beautiful and highly instructive fossils , as we shall point out in the ... sponges that consist of a fibro - reticulated porous mass , destitute of regular tubes or canals : the form ...
Obsah
continued | xxx |
LIST OF LIGNOGRAPHS IN VOL I | xxxix |
PRELIMINARY REMARKSOn the Plan of the Work and the Arrangement | 8 |
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The Medals of Creation Or, First Lessons in Geology, and the Study of ... Gideon Algernon Mantell Náhled není k dispozici. - 2015 |
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