From:
Robert Grahame, Sr.
To:
Sir John Herschel
Date:
[25 March 1819]
Source of text:
RS:HS 9.1
Summary:
Unable to come to dinner on Saturday but hopes to see him in the evening.
Contributor:
John Herschel Project
Unable to come to dinner on Saturday but hopes to see him in the evening.
Made apparatus for showing rings between 'two Tourmalines.' JH's process for making hyposulfurous acid. Praises W. H. Wollaston's analysis of CB's 'Tonquinate.'
Has had some more tourmaline sent. Gives some more equations. Chemical experiments.
Regarding the disposal of the tourmaline. Address of his cousin. Drawing and description of the apparatus for experiments on tourmaline. Chemical experiments.
Has dispatched the tourmaline. His chemical experiments. Circulating functions solving chance problems. [Letter postmarked 1819-3-29.]