Letter | Published:

Chalk

Nature volume 23, page 194 | Download Citation

Subjects

Abstract

MR. WALLACE'S theory that chalk was deposited in comparatively shallow water requires careful examination before it is accepted by geologists. I do not think he has given sufficient evidence to bear out his views which are necessary to his theory of continents.

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References

  1. 1.

    "Specimen photographicum." Verona, 1859. Plate xxi.

  2. 2.

    Actually described as Araucarites, a useless modification in this instance.

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Affiliations

  1. 8, Inverness Terrace, Kensington Gardens, W.

    • S. N. CARVALHO JUN.

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DOI

https://doi.org/10.1038/023194a0

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