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Herschel, John in author 
1860-1869::1862::09 in date 
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Herschel10186

From:
Sir John Herschel
To:
Johannes von Gumpach
Date:
[3 September 1862]
Source of text:
RS:HS 9.73 & 23.386
Summary:

Thanks for the pamphlet on the Figure of the Earth, but regrets he cannot agree with its conclusions. Points out some of the more serious errors.

Contributor:
John Herschel Project

Herschel8938

From:
Sir John Herschel
To:
The London Review
Date:
[17 September 1862]
Source of text:
London Review, 5 (Sept. 20, 1862), 264
Summary:

Congratulations on the balloon ascent to 30,000 feet by James Glaisher and Henry Coxwell. Suggests far greater heights are possible using compressed oxygen to breathe and the 'Peruvian coca leaf' [cocaine] as a source of strength.

Contributor:
John Herschel Project

Herschel8136

From:
Sir John Herschel
To:
Joseph Whitworth
Date:
[27 September 1862]
Source of text:
RS:HS 18.403 (C: 23:387)
Summary:

Quotes report of limitations in JW's new artillery shell for penetrating ironclad vessels. Recounts JH's [Apr. 1836] experiments at Cape of Good Hope to increase explosive power of gunpowder by adding [Luke] Howard's fulminating mercury.

Contributor:
John Herschel Project
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