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Sabine, Edward in author 
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Herschel2730

From:
Edward Sabine
To:
Sir John Herschel
Date:
[12 July 1825]
Source of text:
RS:HS 15.11
Summary:

Reports on his meeting with Charles Bonne and their subsequent failure to see any signals the first night from either Mont Javoul or La Canche. Worries that the distances are too great for measurements so close to the sea. Speaks of similar measurements between Paris and Strasburg.

Contributor:
John Herschel Project

Herschel2731

From:
Edward Sabine
To:
Sir John Herschel
Date:
[16 July 1825]
Source of text:
RS:HS 15.12
Summary:

Reports his 'entire failure' with Charles Bonne to see signals from both La Canche and Mont Javoul on the same night. Tells of moving the telescopes to Tuniers on 1825-7-15. Speaks of similar experiments elsewhere, which also failed. Concludes that distance is not the only factor in distinguishing signals. Plans to visit JH on 1825-7-25.

Contributor:
John Herschel Project

Herschel2732

From:
Edward Sabine
To:
Sir John Herschel
Date:
[20 July 1825]
Source of text:
RS:HS 15.13
Summary:

Reports Charles Bonne's voyage to Mont Javoul and discovery that the rockets there had been sent off too early, accounting for the previous failures. Reports subsequent successes. Conveys his plans to arrive at Teneriffe.

Contributor:
John Herschel Project
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