Geological magazine . u / ^vi, ^^ 8. ^wT --v^- 4 *>. !%,^4:^ &.M,WbocUvoc»-ii. ). We^-h Newman SI. Cf ii-n^ PtersLSpidean plates from tlie from BritisK Localities. J. E. Lee—A Pteraspidean Plate from the Eifel. 105 comb layers separated by black lined layers. It will be seen thatthough in almost every case the black corrugated layer has dis-appeared, yet it has left its marks upon the surface of the corrugatedlayer. My friend Mr. Pengelly, who, in fact, knows more of thePolperro Pteraspideans than any one else, before he saw the speci-men, suggested that the repetition of th
Geological magazine . u / ^vi, ^^ 8. ^wT --v^- 4 *>. !%,^4:^ &.M,WbocUvoc»-ii. ). We^-h Newman SI. Cf ii-n^ PtersLSpidean plates from tlie from BritisK Localities. J. E. Lee—A Pteraspidean Plate from the Eifel. 105 comb layers separated by black lined layers. It will be seen thatthough in almost every case the black corrugated layer has dis-appeared, yet it has left its marks upon the surface of the corrugatedlayer. My friend Mr. Pengelly, who, in fact, knows more of thePolperro Pteraspideans than any one else, before he saw the speci-men, suggested that the repetition of the honeycomb layer mightpossibly be accounted for by one scale having been washed intoanothei, so that, in fact, the specimen consisted of two scales insteadof one ; but, if so, what has become of the nacreous layer ? andin fact, a careful examination of the portion drawn will probablyconvince the observer that it consists of one and not of two may possibly be said that the scale has been broken up and onepart as it were faulted up
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Keywords: ., bookcentury1800, bookdecade1880, bookidgeologicalma, bookyear1882
