Paper, 'The chemical composition of pearls' by George Harley and Harald S Harley

Description

The authors write: 'Although there are many qualitative analyses of pearls, from our being unable, in their voluminous literature, to find any evidence of a quantitative analysis of their ingredients having been recorded, we undertook the examination of several varieties, of which the following is an account:— 1st. As regards oyster pearls. Of these three varieties were examined, British, Australian, and Ceylonese. The qualitative analyses showed that they all had an identical composition, and that they consisted solely of water, organic matter, and calcium carbonate.'

Annotations in pencil and ink.

Subject: Chemistry

Received 23 February 1888. Read 22 March 1888.

A version of this paper was published in volume 43 of the Proceedings of the Royal Society as 'The chemical composition of pearls'.

Reference number

PP/11/33

Earliest possible date

1888

Physical description

Ink and graphite pencil on paper

Page extent

9 pages

Format

Manuscript