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Valz, [J. E.] Benjamin in correspondent 
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From:
[J. E.] Benjamin Valz
To:
Sir John Herschel
Date:
[28 March 1839]
Source of text:
RS:HS 17.459
Summary:

[Letter appears to be a response to some criticisms by JH of BV's paper on Encke's comet submitted to the R.A.S.] Deals with the density of the comet's nebulosity and with the effect of the comet's approach to perihelion, gives estimates of the comet's magnitude, and comments on the behavior of gases.

Contributor:
John Herschel Project