Discusses the possibility of stereoscopic photography of action scenes. Also speculates about color photography.
Showing 21–40 of 928 items
Discusses the possibility of stereoscopic photography of action scenes. Also speculates about color photography.
Declines nomination to commission to prepare for International Statistical Conference meeting in London.
Comments extensively on the calculation, and elimination, of error in geodesic measurements; JH concludes with a few family news items.
Mostly taken up with JH advising AH about changing his course of studies at Cambridge, together with some family news from home.
Thanks TS for TS's publication on lighthouse illumination; adds some of JH's own ideas on the subject.
Comments on the behavior of Sirius with its companion, and on the likelihood of the existence of the inter-Mercurial planet.
[Writing under the pseudonym 'Redde Suum Cuique'], JH notes that a recently published process for recovering silver from old plate was in fact anticipated by James Keir in a 1790 R.S.P.T. paper. Attacks a recent misuse of the word 'actinometer.'
Comments on the publication of several volumes.
Occupied with matters besides magnetism lately. Interest in science of Prince Consort [Albert] is praiseworthy. Discusses several observatories and letter of [T. W.?] Blakiston.
Congratulates TM on receiving knighthood. Sends recommendations and makes inquiries concerning Harold Maclear's schooling.
Has no knowledge of transactions affecting trust fund for W. H. B. Hollier, other than what JH noted in previous letters.
Sends JH's 'On Atoms' to WP.
Thanks HB for a copy of his work on the philosophy of nature.
Asks for meteorological data that RF may have collected.
Asks for details about a strange drawing of Jupiter JH had seen at the Royal Observatory some months earlier, and offers some comments about Warren de La Rue's eclipse photographs.
Please send copies for distribution to JH's friends of JH's paper ['On a New Projection of the Sphere'].
Thanks for letter regarding his prediction of the floods. May be partly to blame as he did mention certain happenings that could be the result of solar phenomenon. Comments on this. If WP communicates this to a paper would like two or three copies.
Selling house [in London]; comments on H. S. Boase's writing on annuities.
Was very pleased to receive another of JB's works. Glad to be associated in his revelations concerning molecular and polarization powers. Recall their past meetings and hopes to renew acquaintance in Paris at some future date.
Begins with a discussion of the probability of error in a series of measurements and comments on astronomical observations including the observation of a comet.