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Schumacher, Heinrich Christian in correspondent 
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Herschel2907

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[22 March 1846]
Source of text:
RS:HS 15.397
Summary:

Circular announcing that [Theodor] Brorsen in Kiel has discovered a new comet. HS adds note that F. W. Bessel has died.

Contributor:
John Herschel Project

Herschel2908

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[7 May 1847]
Source of text:
RS:HS 15.398
Summary:

Professor [H. J.] Anderson of New York wishes to be introduced to JH. Number 600 of Astronomische Nachrichten will finish the 25th volume of the journal. Wilhelm Struve will be present.

Contributor:
John Herschel Project

Herschel2909

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[28 May 1847]
Source of text:
RS:HS 15.399
Summary:

We will drink to your health on June 9, the day on which #600 of the Astronomische Nachrichten will appear.

Contributor:
John Herschel Project

Herschel2910

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[11 June 1847]
Source of text:
RS:HS 15.400
Summary:

In explanation of [15:399] reminds JH of all he wrote for Astronomische Nachrichten previously. Cannot attend B.A.A.S. meeting because of daughter's wedding, but would have declined anyway because of foreseen arguments over the merits of J. C. Adams and U. J. J. Leverrier. Thanks JH for standing invitation to visit England.

Contributor:
John Herschel Project

Herschel7498

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[19 October 1847]
Source of text:
RAS:JH Archive 10/5.15; Reel 9
Summary:

Wilhelm Struve stayed several days with HS enroute from England to Pulkowa, but forgot to leave copies of [JH's Cape Results] for HS and K. L. C. Rümker. Later, Struve forgot to give these to G. B. Airy, who was visiting Pulkovo, for delivery to HS. HS has not yet seen Cape Results, or J. J. Lalande's catalogue to be sent by B.A.A.S. Happy to publish R.A.S. invitation for observations of solar spots. Short poem about Rümker losing a comet.

Contributor:
John Herschel Project

Herschel2911

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[24 March 1848]
Source of text:
RS:HS 15.401
Summary:

The 'psychical epidemic' that is pervading Europe has invaded HS's country, and reason flies to the detriment of science.

Contributor:
John Herschel Project

Herschel2912

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[12 June 1849]
Source of text:
RS:HS 15.402
Summary:

Alexander von Humboldt reports reading that Lord Rosse's telescope has resolved the nebula of Orion. Humboldt requests JH's view on the matter. Describes new government.

Contributor:
John Herschel Project

Herschel2913

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[26 June 1849]
Source of text:
RS:HS 15.403
Summary:

Relays debate about the use of names of Roman gods for 'planets.' [Annibale] de Gasparis proposes to name his discovery in Italian, 'Igia,' rather than the Roman Hygia [Hygeia]. Which version will JH adopt?

Contributor:
John Herschel Project

Herschel2914

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[4 December 1849]
Source of text:
RS:HS 15.404
Summary:

Sends account of rainbow-like atmospheric phenomena; asks JH for an explanation. Remarks on American empirical discoveries. Too many hypotheses being put forward, including [Daniel] Kirkwood's. Comments on [B. A.] Gould and [Stephen] Alexander. Americans think they are absolute judges in scientific matters. Astronomische Nachrichten of 3 November contains improved method for computing planetary orbits.

Contributor:
John Herschel Project

Herschel2915

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[18 December 1849]
Source of text:
RS:HS 15.405
Summary:

Thanks JH for explanation of phenomena [see HS's 1849-12-4]. B. A. Gould [?] has begun to publish American version of Astronomische Nachrichten, but without strong financial backing.

Contributor:
John Herschel Project

Herschel2916

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[15 February 1850]
Source of text:
RS:HS 15.406
Summary:

[A. C.] Petersen [?] claims to have found a new comet near JH's nebula #379. Look for it, but do not announce this discovery.

Contributor:
John Herschel Project

Herschel2917

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[16 April 1850]
Source of text:
RS:HS 15.407
Summary:

Asks JH to accept sunspot observations made over 14 years by the late [J. W.] Pastorff of Altona Observatory. Accompanying micrometrical measurements are worthless due to mounting of telescope.

Contributor:
John Herschel Project

Herschel2918

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[26 April 1850]
Source of text:
RS:HS 15.408
Summary:

Sends [J. W.] Pastorff's solar observations [see HS's 1850-4-16] as JH's own property.

Contributor:
John Herschel Project

Herschel2919

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[28 May 1850]
Source of text:
RS:HS 15.409
Summary:

Reports that [Annibal] de Gasparis has discovered a new asteroid, Parthenope. Gasparis credits JH with the discovery because JH had proposed the name Parthenope when AG had discovered Hygeia.

Contributor:
John Herschel Project

Herschel2920

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[2 August 1850]
Source of text:
RS:HS 15.410 (C: TxU:H/M-1031.2; Reel 1083)
Summary:

Alexander von Humboldt requests that JH answer questions about 'coal sacks (plur.)' [Coal Sack of the Southern heavens].

Contributor:
John Herschel Project
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