Search: Herschel, John in correspondent 
Pritchard, Charles in correspondent 
1860-1869::1863 in date 
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Herschel4212

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[19 October 1863]
Source of text:
RS:HS 14.83 Ada Pritchard, Charles Pritchard: Memoirs of His Life, 240-1
Summary:

Warren de La Rue observes 'willow leaves' [mottling on solar surface]. Diagonal solar eyepiece works with great success. Praises de La Rue's work as having astounding accuracy.

Contributor:
John Herschel Project

Herschel4529

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[15 December 1863]
Source of text:
RS:HS 14.84
Summary:

Describes debate at R.A.S. over the nature of the 'willow leaves.' Different parties argue that the 'leaves' are solid, precipitate, or non-luminous gas.

Contributor:
John Herschel Project
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