Search: Forbes, James David in correspondent 
1840-1849 in date 
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Herschel3539

From:
Sir John Herschel
To:
James David Forbes
Date:
1845-1[?]-22
Source of text:
St. Andrews 7
Summary:

Requests information about actinometers in JF's possession, and provides further information regarding their use.

Contributor:
John Herschel Project

Herschel3540

From:
James David Forbes
To:
Sir John Herschel
Date:
[12 July 1845]
Source of text:
St. Andrews LB III, 700 (C: RS:HS 7.307)
Summary:

Sends new edition of JF's Travels [through the Alps of Savoy]. Hopes JH will examine the theoretical part.

Contributor:
John Herschel Project

Herschel3541

From:
Sir John Herschel
To:
James David Forbes
Date:
[1 March 1847]
Source of text:
St. Andrews 10a (C: RS:HS 22.304)
Summary:

Believes all actinometric measurements made are useless because they did not take into account the rate of expansion of the liquid, which is not constant.

Contributor:
John Herschel Project

Herschel3561

From:
Sir John Herschel
To:
James David Forbes
Date:
[11 August 1845]
Source of text:
St. Andrews 111 (C: RS:HS 22.246)
Summary:

Thanks JF for second edition of work on the Alps. Praises first edition.

Contributor:
John Herschel Project

Herschel3595

From:
Sir John Herschel
To:
James David Forbes
Date:
[13 March 1840]
Source of text:
St. Andrews 13 (C: RS:HS 22.44)
Summary:

On the preparation of paper to exhibit a thermal spectrum.

Contributor:
John Herschel Project

Herschel3596

From:
James David Forbes
To:
Sir John Herschel
Date:
[17 August 1840]
Source of text:
St. Andrews LB III, 120-2 (C: RS:HS 7.296)
Summary:

Thanks for JH's letters and the paper on photography with special reference to the effects of heat. Was present at the R.S.L. during consideration of a national observatory. Would like JH's opinion. Is working on a supplementary report on meteorology.

Contributor:
John Herschel Project

Herschel3597

From:
Sir John Herschel
To:
James David Forbes
Date:
[10 June 1845]
Source of text:
St. Andrews 73 (C: RS:HS 22.241)
Summary:

Hopes to add JF's name to B.A.A.S. Meteorological Committee, and to see JF at Cambridge meeting of the committee.

Contributor:
John Herschel Project

Herschel3598

From:
James David Forbes
To:
Sir John Herschel
Date:
[12 January 1842]
Source of text:
St. Andrews LB III, 318-19 (C: RS:HS 7.299)
Summary:

Is grateful for JH's letter and commendation regarding application for a government pension; will endeavor to carry out his recommendations.

Contributor:
John Herschel Project

Herschel3614

From:
James David Forbes
To:
Sir John Herschel
Date:
[9 March 1840]
Source of text:
St. Andrews LB III 71, 72 (C: RS:HS 7.295)
Summary:

Would like to know the degree of sensibility to heat of JH's paper. The paper of W. H. F. Talbot is useless for his purpose as only violet heat affects it. Did JH use a flint glass prism for his spectrum experiments? Has he ever used photography to show the impression of polarization and diffraction?

Contributor:
John Herschel Project

Herschel3649

From:
James David Forbes
To:
Sir John Herschel
Date:
[3 February 1847]
Source of text:
St. Andrews LB IV, 193-5 (C: RS:HS 7.308)
Summary:

Comments, after delays due to busyness, on JH's queries on the calibration of actinometers and gives results of experiments.

Contributor:
John Herschel Project

Herschel7603

From:
James David Forbes
To:
Sir John Herschel
Date:
[18 September 1847]
Source of text:
RAS:JH Archive 10/5.120; Reel 9
Summary:

Gratitude for gift of JH's Cape Results. Just returned from geological tour of highlands with [Bernhard] Studer from Bern [Switzerland]. Hopes to purchase Madame Witte's 'model of the Moon...for Edinburgh,' if it has not been bought in London. Observed Neptune at Oxford in company with U. J. J. Leverrier, J. C. Adams, and Wilhelm Struve.

Contributor:
John Herschel Project

Herschel8594

From:
Sir John Herschel
To:
James David Forbes
Date:
[27 November 1849]
Source of text:
Edinburgh Royal Society
Summary:

[Responding to JF's 1849-11-23], JH cautiously discusses various considerations bearing on the idea of sending an astronomer and a large reflecting telescope to the Cape.

Contributor:
John Herschel Project

Herschel9563

From:
James David Forbes
To:
Sir John Herschel
Date:
[26 March 1841]
Source of text:
RS:HS 7.297
Summary:

Sending a notice about the polarization of the sky. Also some practical papers he set at Durham. Has the obelisk ready for shipment to the Cape. Has asked Richard Taylor to send him a copy of his report on Meteorology.

Contributor:
John Herschel Project

Herschel9564

From:
James David Forbes
To:
Sir John Herschel
Date:
[6 April 1842]
Source of text:
RS:HS 7.301
Summary:

Would like to know the composition of the fluid in JH's actinometers.

Contributor:
John Herschel Project

Herschel9565

From:
James David Forbes
To:
Sir John Herschel
Date:
[12 May 1842]
Source of text:
RS:HS 7.302
Summary:

Would like to see him for a few minutes to discuss a paper he is preparing for the R.S.L. on actinometer observations.

Contributor:
John Herschel Project

Herschel9566

From:
James David Forbes
To:
Sir John Herschel
Date:
[14 May 1842]
Source of text:
RS:HS 7.303
Summary:

No meeting of the R.S.L. on the 19th but could arrange to see him before dinner. Hopes to spend the summer amongst the glaciers.

Contributor:
John Herschel Project

Herschel9567

From:
Sir John Herschel
To:
James David Forbes
Date:
[19 January 1843]
Source of text:
RS:HS 7.304 & 22.146
Summary:

Protesting about the refusal of the Royal Society of Edinburgh to publish Thomas Brisbane's magnetic observations; hopes it will be reconsidered. Thinks JF's theory on glaciers has good points, but comments on some of its shortcomings.

Contributor:
John Herschel Project

Herschel9568

From:
James David Forbes
To:
Sir John Herschel
Date:
[23 January 1843]
Source of text:
RS:HS 7.305
Summary:

Is grateful for his letter and photographs. Will send him his paper on glaciers, which he is pleased to see interests him. Thomas Brisbane must be in error about the refusal of the Royal Society of Edinburgh to print his magnetic observations.

Contributor:
John Herschel Project

Herschel9569

From:
Sir John Herschel
To:
James David Forbes
Date:
[22 June 1847]
Source of text:
RS:HS 22.320
Summary:

Asks for details of several actinometers.

Contributor:
John Herschel Project

Herschel9570

From:
James David Forbes
To:
Sir John Herschel
Date:
[29 May 1849]
Source of text:
RS:HS 7.310
Summary:

Regarding the possibility of a new edition of JH's Treatise Astr. originally published in Lardner's Cyclopaedia. Has found it very useful for his students.

Contributor:
John Herschel Project
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