Search: Howlett, Frederick in correspondent 
Sorted by:

Showing 1–20 of 26 items

DCP-LETT-11701F

From:
Charles Robert Darwin
To:
Frederick Howlett
Date:
21 Sept [1878]
Source of text:
William Patrick Watson (dealer) (catalogue 22, January 2018, item 20)
Summary:

Cannot explain the peculiarities of the blood corpuscles of the Camelidae; maybe similarity between camels and ostriches arises from adaptation rather than common ancestry.

Contributor:
Darwin Correspondence Project

Herschel10633

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[10 January 1861]
Source of text:
RS:HS 10.14
Summary:

Expressing sympathy on the illness of Margaret Louisa Marshall (JH's daughter). Would like to hear the latest news by the bearer. Would JH append his name to the enclosed form.

Contributor:
John Herschel Project

Herschel10634

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[23 November 1863]
Source of text:
RS:HS 24.23
Summary:

Response to some papers sent to R.A.S.

Contributor:
John Herschel Project

Herschel10635

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[25 January 1864]
Source of text:
RS:HS 10.15
Summary:

Comments on the sun spots he has been observing, and some new phenomenon. Any chance of a visit from JH?

Contributor:
John Herschel Project

Herschel10636

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[26 January 1864]
Source of text:
RS:HS 24.26
Summary:

On the observation of sun spots.

Contributor:
John Herschel Project

Herschel10638

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[22 March 1864]
Source of text:
RS:HS 10.16
Summary:

Has returned James Nasmyth's letter and has never seen Warren de La Rue's letter. Comments on Nasmyth's 'willow leaves.' Have been observed at Greenwich Observatory. Thanks for his remarks on the best kind of eye-piece.

Contributor:
John Herschel Project

Herschel10639

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[27 April 1864]
Source of text:
RS:HS 10.17
Summary:

Hopes the JH's are all well. Would like an eye-piece made by Mr. Cook[e] or any leading optician on the principles of JH as laid down in his paper in R.S.P.T. Shall he refer the optician to this paper?

Contributor:
John Herschel Project

Herschel10640

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[30 April 1864]
Source of text:
RS:HS 24.42
Summary:

More on the construction of a good optical eyepiece for solar observations [see FH's 1864-4-27].

Contributor:
John Herschel Project

Herschel10641

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[9 May 1864]
Source of text:
RS:HS 10.19
Summary:

Is grateful for his communication on the proposed solar eyepiece. Will call round on his way to town to ascertain if he can leave the manuscript with [Thomas?] Cooke, the instrument maker, so that he can have some idea of the work involved. James Nasmyth will pay attention to screen projection.

Contributor:
John Herschel Project

Herschel10642

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[29 April 1867]
Source of text:
RS:HS 10.18 & 24.194
Summary:

Would like FH to study a phenomenon that JH has noticed on the sun's disk and that has no connections with sun-spots.

Contributor:
John Herschel Project

Herschel10643

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[4 May 1867]
Source of text:
RS:HS 10.20
Summary:

Is uncertain if he has detected the lightlines on the solar surface to which JH has called attention, but there does seem to be something unusual there. No sun spots are visible just now.

Contributor:
John Herschel Project

Herschel10644

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[5 May 1867]
Source of text:
RS:HS 24.198
Summary:

Proposes to travel to visit FH next day to observe the sun with him.

Contributor:
John Herschel Project

Herschel10645

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[27 April 1867]
Source of text:
RS:HS 10.21
Summary:

Regrets he was out when JH called. Thanks for the elegant verses. Will be moving shortly to a place nearer London, which promises much. Gives notes on some more sun spots, which he has recently observed.

Contributor:
John Herschel Project

Herschel10646

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[10 October 1868]
Source of text:
RS:HS 24.231
Summary:

Details about sunspot observations.

Contributor:
John Herschel Project

Herschel10647

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[13 October 1868]
Source of text:
RS:HS 10.22
Summary:

Much obliged for his kind notes on sunspots; there has been a wonderful variety lately. Will make a study of the Julian dates. Can see the Crystal Palace fireworks splendidly from his house.

Contributor:
John Herschel Project

Herschel10648

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[24 April 1870]
Source of text:
RS:HS 24.306
Summary:

Writes to compare notes on sunspot observations.

Contributor:
John Herschel Project

Herschel10649

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[28 April 1870]
Source of text:
RS:HS 10.23
Summary:

Has no idea whether the sunspots appeared suddenly or gradually. The Kew people may be able to help in this matter. Comments on some more sunspots.

Contributor:
John Herschel Project

Herschel10650

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[25 August 1870]
Source of text:
RS:HS 10.24
Summary:

Intends bringing the subject of sunspots before the B.A.A.S. next September and would therefore like JH's views on whether in his opinion these spots are mechanical or magnetic. Also any other comments would be welcome.

Contributor:
John Herschel Project

Herschel10651

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[7 September 1870]
Source of text:
RS:HS 10.25
Summary:

Is grateful for JH's note. Agrees with him about the mystery of the sunspots. Is awaiting some heliographs from Ely. Is inquiring from Kew as to any recent magnetic disturbances that may coincide with the appearance of the sunspots. Is grateful for Alexander Hershel's information.

Contributor:
John Herschel Project

Herschel10652

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[5 April 1871]
Source of text:
RS:HS 10.26
Summary:

Is anxious to have an astronomical eye-piece based on JH's principles. Encloses communication from Messrs. Horne and Thornthwaite, who would like details for their employee, [W.?] Ackland, to work from.

Contributor:
John Herschel Project
Author
Addressee
Correspondent
Date
Document type
Repository
Contributor
Transcription available