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Wallace, William in correspondent 
John Herschel in collection 
1820-1829 in date 
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From:
William Wallace
To:
Sir John Herschel
Date:
[16 March 1824]
Source of text:
unknown
Summary:

Please recommend London instrument makers to supply new Edinburgh observatory. Josef Fraunhofer was asked to make only lens for transit instrument, but wants to make entire instrument. [JH annotation: Recommended Fraunhofer for entire transit instrument and Robert Molyneux for clock.]

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Wallace
Date:
23] March [1825
Source of text:
RS:HS 20.203
Summary:

Let Josef Fraunhofer make WW's whole transit instrument, and mural circle as well. Attests to Fraunhofer's artistry. Germans will soon leave no stars to discover. Wishes someone would import G. F. Reichenbach's meridian circle and use it on F. W. Bessel's plan. Suggests WW order clocks from [Robert] Molyneux or [William] Hardy.

Contributor:
John Herschel Project
From:
William Wallace
To:
Sir John Herschel
Date:
[5 October 1825]
Source of text:
RS:HS 18.24
Summary:

Introduces Dionysius Lardner, author of system of algebraic geometry, visiting England.

Contributor:
John Herschel Project
From:
William Wallace
To:
Sir John Herschel
Date:
[1 December 1825]
Source of text:
RS:HS 18.25
Summary:

Received volume on double stars by JH and James South. Followed JH's advice, ordered instruments from Germany. Asked Josef Fraunhofer to design transit instrument to fit pillars designed by Edward Troughton. Quotes Fraunhofer's response [in French] that pillars should be moved to accommodate his instrument. David Brewster anxious for JH to answer last letter.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Wallace
Date:
[12 December 1825]
Source of text:
RS:HS 20.226
Summary:

Edinburgh Institution's decision to order instruments from Josef Fraunhofer should send message to 'dilatory and ... abominably expensive' English artists. Axis of Fraunhofer's 8-foot transit instrument is too long. Compares those of Cambridge, Greenwich, Paris, and James South. [Robert] Woodhouse's paper in 1825 R.S.P.T. eliminated JH's hope that Cambridge would devote time to general catalogue.

Contributor:
John Herschel Project
From:
William Wallace
To:
Sir John Herschel
Date:
[3 February 1829]
Source of text:
RS:HS 18.26
Summary:

Thomas Henderson will visit London and inform JH of events at Edinburgh Observatory. Will WW's paper on instrument for multiplication interfere with Charles Babbage's proposed machine?

Contributor:
John Herschel Project