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The Royal Society: Science in the Making

Paper, 'On the microscopic characters of some specimens of devitrified glass, with notes on certain analogous structures in rocks' by Douglas Herman and Frank Rutley

Reference number: PP/7/3

Date: 1885

Description

Herman and Rutley write: 'Devitrification is a process which may either take place naturally or be brought about by artificial means. Instances of the former are familiar to us in once glassy rooks which have passed into a felsitic or micro-crystalline-granular condition. The change which has taken place in the conversion of obsidian into felstone is so great that it would not be possible to infer the original nature of the rock, were it not that certain structural peculiarities, often of a very delicate character are retained.'

Annotations in pencil and ink. Includes 15 pages of figures relating to glass under a microscope.

Subject: Mineralogy / Geology / Crystallography

Received 28 May 1885. Read 18 June 1885. Communicated by Thomas George Bonney.

A version of this paper was published in volume 39 of the Proceedings of the Royal Society as 'On the microscopic characters of some specimens of devitrified glass, with notes on certain analogous structures in rocks'.

Reference number
PP/7/3
Earliest possible date
1885
Physical description
Ink and graphite pencil on paper
Page extent
39 pages
Format
Manuscript
Drawing

Creator names

Douglas Herman

Frank Rutley

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Citation

Douglas Herman, Frank Rutley, Paper, 'On the microscopic characters of some specimens of devitrified glass, with notes on certain analogous structures in rocks' by Douglas Herman and Frank Rutley, 1885, PP/7/3, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_7_3/paper-on-the-microscopic-characters-of-some-specimens-of-devitrified-glass-with-notes-on-certain-analogous-structures-in-rocks-by-douglas-herman-and-frank-rutley, accessed on 23 April 2025

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    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

    Dates: 1882 - 1894

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