Has no actinometers available [see GA's 1856-4-23], but tells GA where he can get one; rhapsodizes about the beauty of nature around him, and the silliness of a person.
Showing 81–100 of 134 items
Has no actinometers available [see GA's 1856-4-23], but tells GA where he can get one; rhapsodizes about the beauty of nature around him, and the silliness of a person.
A note accompanying a letter that seems to come from François Arago, and that seems to JH to show a disturbed state of mind; asks GA for his opinion.
Some more information on the use of the actinometer [see JH's 1856-4-24 & GA's 1856-6-3]; some news of JH's wife, Margaret.
Some high quality sets of weights are becoming available. Should they be acquired for use with the standards work?
Asks GA about the best way to store standard measures [see GA's 1853-9-8].
Agrees to new meeting time [see GA's 1853-9-14].
Comments on accidental burns to JH's daughter Amelia.
Suggests ways of eliminating transmission of vibration to a piece of sensitive equipment.
Is having some difficulty in acquiring the single weight [see GA's 1851-10-1].
Giving reply for GA to send to Toronto. Is grieved to hear of Edward Sabine's illness.
Is trying to arrange to have GA join JH and some friends for dinner.
Returns Richard Sheepshanks's papers with some comments [see GA's 1852-1-15].
Wants to begin using decimal fractional weights of pounds and ounces at the Royal Mint, rather than pennyweights and grains. Would like to extend this method beyond the Mint. Asks for date of heliacal rising of Sirius at Athens in the time of Euripides.
The Bank of England will start to deal with weights of precious metals in decimals only [see GA's 1852-10-23]. JH responds to a letter in the Times about the shortage of silver coins.
Argues for the decimalization of all weights, measures, and money [see JH's 1852-10-26].
[Reply to GA's [1856-4-6 or earlier] on Mohamet's coffin theory.] Congratulations on GA's son winning a scholarship. JH's health is better, but he cannot walk yet.
Comments on GA's proposals about the storage of primary standards [see GA's 1853-2-7, i.e., RGO 6.341.30], and about secondary standards [see GA's 1853-2-7, i.e., RGO 6.341.31].
The meeting date is fine, but no hour or place has been specified [see JH's 1853-2-16].
Informs GA of the discovery of an earlier standard pound weight found at the Royal Mint.
Explains why JH could not attend meeting [see GA's 1853-8-16]; hopes GA and family had a pleasant holiday.