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Herschel, John in correspondent 
Clarke, Edward Daniel in correspondent 
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From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[1816]
Source of text:
TxU:H/M-0141; Reel 1087
Summary:

Reports account given at [Sebremnitz] of ore that JH analyzed.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
[1816]
Source of text:
Sydney Ross Collection
Summary:

Mentions some chemical experiments on which JH has worked; hopes EC will exhibit his experiments for R.S.L.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
[1816]
Source of text:
Sydney Ross Collection
Summary:

Describes chemical experiments carried out by JH on corundum. Attempts to interpret these experiments.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
[1816]
Source of text:
Sydney Ross Collection
Summary:

Praises EC for 'amazing experiments' published in [William T.] Brande's journal [Quarterly Journal of Science and Art]. Wishes EC's publication had appeared in R.S.P.T. Has an experiment to show EC.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
[1816]
Source of text:
Sydney Ross Collection
Summary:

Reports on some chemical results obtained by JH.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
[20 April 1816]
Source of text:
Sydney Ross Collection
Summary:

Thanks EC for his interest in a paper JH submitted to the Geological Society. JH has come to question some of his observations and to recognize that J. J. Berzelius anticipated JH's recognition of the acid nature of silica.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
1816-11
Source of text:
Sydney Ross Collection
Summary:

Sending EC a specimen that W. H. Wollaston describes as 'the most intractable substance by fire' he has ever seen. Discusses its properties and possible chemical composition.

Contributor:
John Herschel Project
From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[1 December 1816]
Source of text:
RS:HS 5.256 (C: TxU:H/M-0142; Reel 1087)
Summary:

Chemical experiments with EC's blowpipe. Discovered cause of blowpipe explosions. Thank Mrs. Lowry for carbon substance sent to EC. Sent metal of Baryta to W. H. Wollaston. Suspects metallic nature of carbon and diamond.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Daniel Clarke
Date:
1816-12[?]-24
Source of text:
Sydney Ross Collection
Summary:

Returns with thanks EC's specimen of Island Crystal. Also discusses specimen of titanium lent by EC.

Contributor:
John Herschel Project
From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
20] January [1817
Source of text:
RS:HS 5.257 (C: TxU:H/M-0143; Reel 1087)
Summary:

Regrets his blunder. Send him Wilson Lowry's address and he will write. His own recent experiments with platinum.

Contributor:
John Herschel Project
From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[12 March 1817]
Source of text:
RS:HS 5.258 (C: TxU:H/M-0144; Reel 1087)
Summary:

When his lectures have finished he will attend to JH's request regarding the inscription of Dr. G. H. Noehden. Hopes he will attend one of Sir Joseph Banks' Sunday evening gatherings and show the specimens he has given JH; also show them to W. H. Wollaston.

Contributor:
John Herschel Project
From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[1822 or earlier]
Source of text:
RS:HS 5.259
Summary:

Forgot to mention it last time they were together that another mammoth has been found at Trumpington. This agrees with G. C. L. D. Cuvier's theories. Regarding the ore JH has just analyzed.

Contributor:
John Herschel Project
From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[1822 or earlier]
Source of text:
RS:HS 5.260
Summary:

Thanks for his kind note. Mr. Harrison wishes him to prepare a paper for the R.S.L. Will find his experiments continued in the next number of Thomson's Annals. As soon as his blow pipe is repaired he will let him know.

Contributor:
John Herschel Project