Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . Fig- 31-—Ptxtoi asper. Fig. 30.—Pecten interstriatus. evidence of no less than three successive faunaebetween the chloritic marl and the base of the uppergreensand. In a paper communicated to theGeological Society in March, iSSi, I gave themeasurements of these rocks as found at St. Lawrenceand Ventnor, I. W., at the same time pointing outhow remarkably certain zones might be distinguishedand determined by the careful observation of thepaloeontological remains. In the short discussi
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . Fig- 31-—Ptxtoi asper. Fig. 30.—Pecten interstriatus. evidence of no less than three successive faunaebetween the chloritic marl and the base of the uppergreensand. In a paper communicated to theGeological Society in March, iSSi, I gave themeasurements of these rocks as found at St. Lawrenceand Ventnor, I. W., at the same time pointing outhow remarkably certain zones might be distinguishedand determined by the careful observation of thepaloeontological remains. In the short discussionwhich followed, some astonishment was expressedat my measurement of the chloritic marl, and at theposition I had given Pecten asper, while an opinionwas also expressed that such widely distributedgenera as Pecten and Lima were not of themselvessufficient to form a guide in separating the zones oflife in the greensands. Since that time I have had an opportunity of re-measuring the chloritic marl in a section of a quarry band, a few inches only in thickness, many specimensmay be found, all more or less
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience
