Acclimatisation of potatoes by selection.
Acclimatisation of potatoes by selection.
Sends cheque for £5 as subscription to Westminster Review.
Asks whether AMN has any specimens of British calcareous sponges that CD could forward to Haeckel, who is studying them.
Progressing with translation of new footnotes for Orchids. Asks for help with a few words.
Mating practice of Carcinus maenas [see Descent 1: 331].
Difference in size in sexes of Crustacea.
Reports on prehistoric finds from caves at Rhagatt.
Knows Dawkins interested in cave animals; has just heard from a Lloyd of Rhaggatt that a fissure has opened full of bones and teeth. Will send some.
Forwards letter from W. B. Dawkins. The bones, though not themselves interesting, may indicate the work of prehistoric man.
No summary available.
No summary available.
Was very happy to receive JH's remarks on his little logical work. Comments on this work. Is not satisfied with the logic of J. S. Mill. Has not seen [James] Haig's work yet, but hopes to read it on return from the Continent.
Thanks JH for his letter and package of his writings.
A note to accompany a paper by FP on the prediction of occultations and eclipses.
Glad for Mary's recovery. Congratulations on John's promotion to captain. Suggests method to study solar prominences without spectroscope. [Letter continues 15 June:] Alexander Herschel reports that G. B. Airy tried this method unsuccessfully long ago, but JH is sure it will work.
Received TW's book and approves simplicity and economy of its method of keeping time by using small fixed telescope to reduce star observations. Disapproves of using 'Dominical Letters.' Suggests using Julian dates.
Note to accompany an extract from JH's son John's letter, reporting on his observations of solar prominences.
Extended comments on John Herschel's [JH's son] observations of the spectrum of the solar corona.
Attached comments [not included] convey JH's views on MS's new manuscript [On Molecular and Microscopical Science, 1869]. Expresses reservations about MS's endorsement of current ideas of forces and their correlation and conservation.
Reports on paper [R.S.P.T., 159,. 575-] by [Thomas] Andrews on continuity of gaseous and liquid states of matter, believing it fit for publication.
About AD's health and the cold summer.