Reference numberAP/60/12
TitleUnpublished letter, 'Artifically formed diamonds' from James Mactear to the Secretary of the Royal Society
CreatorMactear; James (1845-1903); Scottish chemist
Date14 December 1879
DescriptionMactear writes: 'as the result of certain speculations on the density of matter, I have been able to produce carbon in the crystalline form, perfectly pure and transparent in colour, and with all the properties of the natural diamond sofar as its power of scratching glass, resisting the action of high degrees of heat, and of acids and alkalis also apparently in its refractive power and crystalline form.' He states that he will communicate the results of his experiments in greater detail. He also shares his observations on the atomic weight of carbon.

Subject: Chemistry

Received and read 18 December 1879.

Written by Mactear in Saint Rollox, Glasgow [Scotland].
Physical descriptionInk on paper
Digital imagesView item on Science in the Making
Access statusClosed
Access conditionsNot available to view, off site for conservation. Please refer to digital surrogate on Science in the Making.
Fellows associated with this archive
NA8293Tyndall; John (1820 - 1893); natural philosopher1820 - 1893
NA6363Story-Maskelyne; Mervyn Herbert Nevil (1823 - 1911)1823 - 1911
NA3673Thomson; Allen (1809 - 1884)1809 - 1884
NA3531Smyth; Sir; Warington Wilkinson (1817 - 1890)1817 - 1890
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