Royal Institution | Friday 2½ P.M.
Dear Mr. Murray
Your note2 has just fallen into my hands, and I regret to say that I was bound before it reached me.
I have just made a winter expedition to the Mer de Glace,3 and in the face of no small difficulty have succeeded in determining the winter motion along two transverse lines, including twenty-one different points.—The winter observations are thus raised to the same degree of accuracy as that already proposed by the summer ones.
The aspect of the glacier and its surroundings was grand and singular—Indeed irrespective of science it was worth while going all the way to the Montanvert to see it.
I have recommenced writing for Mr Clowes4 & expect have the whole book in his hands by the middle of March.5
Very sincerely yours | John Tyndall.
National Library of Scotland, John Murray Archive, Ms. 41214
[6 January] 1860: See n. 3, which implies a date in early January 1860. The first Friday in January 1860 was the 6th.
Your note: note missing.
I have just made a winter expedition to the Mer de Glace: Tyndall’s visit was a quick one to fit between his other commitments. He left London on 22 December 1859 and was back on New Year’s Day 1860.
Mr Clowes: William Clowes & Sons, founded in 1803, were John Murray’s printers. See also letter 1695.
expect have the whole book in his hand by the middle of March: the manuscript of Glaciers of the Alps, see also letter 1595, n. 4.
Please cite as “Tyndall1675,” in Ɛpsilon: The John Tyndall Collection accessed on