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Birt, William Radcliffe in correspondent 
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Herschel, John in addressee 
1840-1849::1848::01 in date 
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From:
William Radcliffe Birt
To:
Sir John Herschel
Date:
[8 January 1848]
Source of text:
RS:HS 4.120
Summary:

Encloses the manuscript of the directions for atmospheric waves and barometric fluctuations. Suggests that it would be useful if the vessel about to travel to New Zealand would be utilized to supply barometric readings en route.

Contributor:
John Herschel Project
From:
William Radcliffe Birt
To:
Sir John Herschel
Date:
[15 January 1848]
Source of text:
RS:HS 4.121
Summary:

Omitted a detail concerning observations in his last letter. Further regarding the proposed observations in New Zealand.

Contributor:
John Herschel Project