Gives permission to reprint letters to Athenaeum on standard of length, in light of recent bill to metricize. Requests as many copies as possible.
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Gives permission to reprint letters to Athenaeum on standard of length, in light of recent bill to metricize. Requests as many copies as possible.
Discusses dispersal of copies of letter against adoption of 'French metre' [see JH's 1863-6-4].
Comments on GA's activity in correcting the calculation errors [see GA's 1863-6-2].
Would be pleased to receive a sample of thallium. Queries regarding the manufacture of pure nickel and cobalt.
Thanks for the thallium. Further regarding his 'cobalt steel' and its uses. Fluorin glass.
A letter of introduction asking GA to admit Major Robertson and his sisters to the observatory.
Passes on recent reports of good news that daughter Caroline is improving, and that JH's wife, Margaret, survived the journey well. [Margaret went to Dublin to be with Caroline when she became very ill at the birth of her daughter Kathleen.]
Saw J. B. N. Hennessey [who had just come from India] at a Greenwich visitation day, but did not have time to speak to him there. JH will invite him to Collingwood.
Seeks WW's signature for the Thomas Maclear Memorial. JH's daughter Julia has been ill.