The Quarterly journal of the Geological Society of London (1854) (14597016640)

Identifier: quarterlyjourna101854geol (find matches)

Title: The Quarterly journal of the Geological Society of London

Year: 1845 (1840s)

Authors: Geological Society of London

Subjects: Geology

Publisher: London (etc.)

Contributing Library: Smithsonian Libraries

Digitizing Sponsor: Biodiversity Heritage Library

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-currence of similar bodies found by Mr. Saxby, in the Isle of Wight, is alluded toby the late Dr. Mantell in his Geol. Isle of Wight, &c. p. 247. Mr. Tagartsspecimen (see Quart. Journ. Geol. Soc. vol. ii. p. 267) is in the Museum of theGeological Society; and a similar example is in the British Museum. In theSocietys Collection there is also a large slab of Purbeck limestone, the surface ofwhich is shaly and covered with coarse fucoidal (?) markings. In this shaly por-tion are two large, trifid, pachydactylous foot-marks, resembling those from theWealden, each measuring 12 inches in length. t With the extensive accumulation of these natural casts in my collection, Ifelt much surprise that men of real science should still pronounce them mereaccidental concretions. The cause, whatever it was, so uniformly produced the sameeffects, whether in clay-rock, sandstone, or shale, as to be inconsistent with ouridea of an accident. To reject these trifid bodies as organic phenomena, because

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1854

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