Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-15T05:03:14.542Z Has data issue: false hasContentIssue false
  • English
  • Français

Mr. De Rance & The Rev. T. G. Bonney on Surface-Geology and Lythodomous Perforations

Published online by Cambridge University Press:  01 May 2009

D. Mackintosh
Rights & Permissions [Opens in a new window]

Abstract

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
Image of the first page of this content. For PDF version, please use the ‘Save PDF’ preceeding this image.'
Type
Correspondence
Information
Geological Magazine , Volume 7 , Issue 67 , January 1870 , pp. 47 - 48
Copyright
Copyright © Cambridge University Press 1870

References

1 On coasts now existing, the sea makes a headland, and in time breaks it up.

2 Or to marl-pits on the sides of drift-knolls.

3 Mr. Cameron, of the Geological Survey, Ulverstone, has in his possession a disused limestone gate-post I found on a roadside near Birkrigg Moor. On one part of it there is a group of deep holes more regularly ground out than a hole made by an iron jumper on the same slab of rock. From one of these holes Mr. Cameron extracted seventeen land-shells! Did each of the snails take a turn at boring, while the others rested from their labours ? or did one snail bore the hole, and then extend to a number of brother snails the benefit of a sheltered habitation ? The late Dr. S. P. Woodward decided against the snail-theory of M. Bouchard-Chantereaux, and Miss Hodgson, now revived by the Rev. T. G. Bonney. (See Editorial Note to my article on Pholas-borings, Geol. Mag., Vol. IV., July, 1867.)