Contributions to Geology Microform
Contributions to Geology Microform
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In our eReader you can find the full English version of the book. Read Contributions to Geology Microform Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Contributions to Geology Microform
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Deshayes mentions one hundred and fifty-six as existing in the Tertiary of Europe. Forty-one are from the Paris basin and thirty-three from the Subappennines. In this country Mr Conrad is, I believe, the only geologist who has noticed the genus. At St Mary's, Maryland, he dis- covered seven species, which are described by him in the Journal of the Academy of Natural Sciences, vol. 6, p. 223. Neither of these is the analogue of those above described.
GENUS CANCELLARIA. Lamarck.
C. Babylonica. Pl...ate 5. Fig. 134.
Description. Shell turrited, inflated, smooth, substance of the shell thin ; whorls six, angular, broad and flat at the top, and furnished on the angle with irregular erect spinous tubes ; umbilicus wide, armed with points ; mouth trian- gular, two fifths of the length of the shell ; columella with two indistinct folds ; outer lip sharp. Length . 5, Breadth . 3, of an inch.
TO GEOLOGY. 139 Observations. A single specimen only of this beautiful species has come into my possession.
What to read after Contributions to Geology Microform?
You can find similar books in the "Read Also" column, or choose other free books by Isaac Lea to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Deshayes mentions one hundred and fifty-six as existing in the Tertiary of Europe. Forty-one are from the Paris basin and thirty-three from the Subappennines. In this country Mr Conrad is, I believe, the only geologist who has noticed the genus. At St Mary's, Maryland, he dis- covered seven species, which are described by him in the Journal of the Academy of Natural Sciences, vol. 6, p. 223. Neither of these is the analogue of those above described.
GENUS CANCELLARIA. Lamarck.
C. Babylonica. Pl...ate 5. Fig. 134.
Description. Shell turrited, inflated, smooth, substance of the shell thin ; whorls six, angular, broad and flat at the top, and furnished on the angle with irregular erect spinous tubes ; umbilicus wide, armed with points ; mouth trian- gular, two fifths of the length of the shell ; columella with two indistinct folds ; outer lip sharp. Length . 5, Breadth . 3, of an inch.
TO GEOLOGY. 139 Observations. A single specimen only of this beautiful species has come into my possession.
What to read after Contributions to Geology Microform?
You can find similar books in the "Read Also" column, or choose other free books by Isaac Lea to read onlineMoreLess
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