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de La Rue, Warren in correspondent 
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Herschel, John in addressee 
John Herschel Project in contributor 
1860-1869 in date 
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Herschel6835

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[28 January 1860]
Source of text:
RS:HS 6.145
Summary:

Sending Robert Main's certificate for JH's signature.

Contributor:
John Herschel Project

Herschel6836

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[1 December 1860]
Source of text:
RS:HS 6.146
Summary:

Please accept his thanks for his article on telescopes. Comments on JH's views. Would like 50 copies of the article to distribute to opticians.

Contributor:
John Herschel Project

Herschel6838

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[26 June 1861]
Source of text:
RS:HS 6.148
Summary:

Gives diameter of the sun's image. Used an ordinary eye-piece. There must be some mistake about the penumbra. It is possible now to take daily records of the surface of the sun.

Contributor:
John Herschel Project

Herschel6837

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[24 August 1861]
Source of text:
RS:HS 6.147
Summary:

Sending him his first photograph of the sun's spot. Has caused a lot of preparation. Comments on various points.

Contributor:
John Herschel Project

Herschel6840

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[10 November 1861]
Source of text:
RS:HS 6.149
Summary:

Is pleased that JH likes his plates of Mars. Has a great collection of drawings of Mars but only a few of Venus. Hopes by the Spring to have the photoheliograph working. Has just completed his volume on the eclipse for 1860.

Contributor:
John Herschel Project

Herschel6842

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[14 September 1862]
Source of text:
RS:HS 6.150
Summary:

Regarding the pictures of the moon by M. M. Gussew. Gives details of the eclipse of 1860. Heliograph has been working at his observatory since February. G. Sabler has now left and will doubtless do good work when he receives his instrument from J. H. Dallmeyer.

Contributor:
John Herschel Project

Herschel6844

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[23 November 1863]
Source of text:
RS:HS 6.152
Summary:

Thinks it possible that a letter he wrote to Charles Pritchard may have been passed to JH. Thinks there is some substance in James Nasmyth's claim on seeing 'Willow leaves' on the surface of the sun.

Contributor:
John Herschel Project

Herschel6845

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[1 May 1864]
Source of text:
RS:HS 6.153
Summary:

Regarding the solar photographs. They are not magnified originals but taken direct. Comments on these photographs. Has had correspondence with W. R. Dawes regarding the 'willow leaves' of James Nasmyth.

Contributor:
John Herschel Project

Herschel6846

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[1 June 1864]
Source of text:
RS:HS 6.154
Summary:

Agrees with him that J. Müller's drawings do not show the entities around the sunspot clearly. Has nearly completed the apparatus for holding one of JH's sun prisms to his reflector. Hopes to do something with it soon.

Contributor:
John Herschel Project

Herschel6847

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[3 July 1864]
Source of text:
RS:HS 6.155
Summary:

Appreciates the difference between Robert Hooke's and JH's suggestions for a helioscopic telescope. Comments on these suggestions. Has recently constructed a reflecting prism. Comments on this.

Contributor:
John Herschel Project

Herschel6848

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[11 July 1864]
Source of text:
RS:HS 6.156
Summary:

Was not the person who sent him some photographs of the sun. Was glad the Astronomical Soiree was well spoken of. James Nasmyth was conspicuous and is pleased he was mentioned in JH's Outlines Astr.

Contributor:
John Herschel Project

Herschel6849

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[18 July 1864]
Source of text:
RS:HS 6.157
Summary:

Encloses a letter from William Simms, which contains a suggestion for JH's reflecting prism. Inclines to the view that a reflector is not the most suitable instrument for sun observations.

Contributor:
John Herschel Project

Herschel6850

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[20 July 1864]
Source of text:
RS:HS 6.158
Summary:

Sending the tracing again with a few additions. Comments on this and the one sent yesterday.

Contributor:
John Herschel Project

Herschel6851

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[6 August 1864]
Source of text:
RS:HS 6.159
Summary:

Sending a photograph of the moon 38" in diameter. Begs him to accept it as a mark of appreciation.

Contributor:
John Herschel Project

Herschel6852

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[24 September 1864]
Source of text:
RS:HS 6.160
Summary:

Has just returned from a short tour of Russia. Visited Pulkowa and Nijny Novgorod. Had difficulties with couriers. JH's suggestion for a rotating disc with slit to reduce sunlight sounds feasible. Weather was unsuitable at Pulkowa for any observations.

Contributor:
John Herschel Project

Herschel6853

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[25 October 1864]
Source of text:
RS:HS 6.161
Summary:

Has just received JH's 'Catalogue of Nebulae.' Has placed his skeleton tube in the cradle of his equatorial. Comments on this and gives sketches.

Contributor:
John Herschel Project

Herschel6854

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[22 November 1864]
Source of text:
RS:HS 6.162
Summary:

Encloses a letter from Angelo Secchi. Sent him a Herschelian eye piece and is having a prism prepared for him. Secchi has seen James Nasmyth's 'willow leaves.'

Contributor:
John Herschel Project

Herschel6856

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[12 December 1864]
Source of text:
RS:HS 6.164
Summary:

Has received a letter from Angelo Secchi who states that he has seen James Nasmyth's 'willow leaves.' Remainder of letter relates to the JH prism, which he sent him through Cardinal N. P. S. Wiseman.

Contributor:
John Herschel Project

Herschel6857

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[14 January 1865]
Source of text:
RS:HS 6.165
Summary:

Would JH look through the proof of WD's speech on the presentation of a [R.A.S.] medal to Professor G. P. Bond and make any comments or suggestions.

Contributor:
John Herschel Project

Herschel6858

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[30 January 1865]
Source of text:
RS:HS 6.166
Summary:

Encloses two certificates and hopes that he will give the candidates his support. Has just received a letter from Angelo Secchi on the Herschelian prism.

Contributor:
John Herschel Project
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