Encourages GA to make requests to ensure that the Royal Observatory instruments are first rate [see GA's 1855-10-24].
Showing 61–80 of 107 items
Encourages GA to make requests to ensure that the Royal Observatory instruments are first rate [see GA's 1855-10-24].
Thanks GA for his description of Madeira; JH will try to get to Greenwich next day.
Arranging with GA for the provision of regular R.A.S. publications to be supplied to a foreign member.
Question about whether the effect of Venus on the motion of the moon's node is measurable; this was brought on by reading J. H. Seyffert's writings.
Invites GA to stay at Collingwood and explore the area for evidence of Roman occupation [see GA's 1851-11-4], and talks about a friend of JH's family. Indicates a price offered for weights, but has had no response [see GA's 1851-11-3].
Is not very knowledgeable about local terrain that might help GA; adds comments about weight buying, and offers a solution [see GA's 1851-11-5].
Is seeking clarification about some papers GA sent to JH.
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.