Asks permission to send JH several articles he wrote concerning optics.
Asks permission to send JH several articles he wrote concerning optics.
Asks where JH's opinion that subsidence of land is caused by the pressure of material accumulation is stated in detail.
Appreciates JH's opinion regarding variability of climate, although it disagrees with his own. His views are not provable and the question remains one of probability.
[Richard?] Proctor [?] agrees with JR's views on Cosmical Climates. Re-presents his theory because he feels he did not state it fairly in his earlier [1870-5-27] letter.
Discusses his thoughts on high powered definition and residual aberration in microscopes. Thinks they may be applicable to telescopes.
Sends packet from [John] Hennessey to JH for his perusal. Discusses recent weather. Wants JH's opinion of self-recording meteorological instruments. Mentions wreck of the Hansa.
Sends telegram from the Germania. Discusses crew of Hansa [see 15.292]. Asks if JH wants certain experiments done at Kew. Troubled by [W. A.] Miller's sudden illness.
Sends notice from [C. P. B.] Walker regarding pendulum experiments in India. Would welcome suggestions for new experiments in India.
Asks JH to write to Earl de Grey [G. F. S. Robinson] stating JS's qualifications for position on Royal Commission 'for inquiring into the question of the Extension of State Aid to Sciences.'
Thanks JH for drawing of solar maculae from 1854-61. Some hesitancy about the accuracy of [Alexander?] Wilson's observations and hypotheses. Sixty people wish to travel to Spain to see eclipse of the sun.
Is sending solar autographs. Notes that in groups of spots the larger precede the smaller spots. Can JH form any theories from this?
Detached postscript that discusses the margins of the two photographs, which seem to show that all planets are in the near hemisphere.
Desires permission to present JH's 'diagram of "macularity"' to the R.A.S.
Discusses the different strata of the ocean and [William] Carpenter's lecture on deep sea dredging. Is digging an artesian well.
Sends two copies of JH's 'macular conspectus.' Mr. Titterton was very pleased that JH approved of his work.
Thanks JH for the drawings. Will send new solar autographs showing macula. Is working on the autographic series of the activity of the sun during its 11 year period.
Has been trying to make pendulum curves. Believes they may help explain the different sunspot forms. Thanks JH for the spectroscopic observation memoirs.
About a title change for the Astronomer Royal's chief assistant.
Thanks JH for writing. Complains of obstacles to his work. Happy to see JH recognizes work begun by Blaise Pascal and continued by famed mathematicians. Asks JH to respond to AQ's wish to dedicate his book [L'Anthropométric] to JH with only one word: 'J'accepte.'
Is working on humans and their proportions. Encloses brochures. Wishes to dedicate L'Anthropométric to JH.