Asks for copy of CD’s paper ["Ancient glaciers of Caernarvonshire", Collected papers 1: 163–71]. Gathers that drift of Moel Tryfan is glacial.

Believes Glen Roy roads formed later than submergence of Scotland.

Asks CD’s opinion concerning relative chronology of various glacial deposits, particularly a flint tool find in the Ouse River near Bedford.

Discusses his observations at Glen Roy. Mentions glaciers seen by Hooker in the Himalayas. Discusses problems of glacier–lake theory.

Writes with an important fact about the parallel roads of Glen Roy. The watershed at Makoul corresponds with the lowermost of the Glen Roy lines. Over a stretch of 20 miles from east to west the lowermost of the Glen Roy lines is near parallel with the present sea level.

Jamieson has revisited Glen Roy and confirmed his theory of glacier lakes.

A. G. More considers CD the most profound of reasoners.

TFJ returns CD’s "too flattering" letter concerning Glen Roy [see 3761]. Further discussion of [A. C.] Ramsay’s, [J. D.] Hooker’s, and CL’s arguments about the formation of glacial lakes.

Has been to Osborne on the Isle of Wight to visit Queen Victoria, who had lots of questions about CD.

Thinks of adding chapter on man to Variation. Asks about muscles connected to os coccyx in man and existence of other rudimentary organs in man.

Sends copy of Origin.

Requests information about rudimentary muscles and organs in man. Asks about marrow of os coccyx, and about testes and ovaria in early embryos of both sexes.

Thanks for information about rudimentary organs. Asks about rudimentary character of human hair and panniculus carnosus.

Curious to read what CD will say on man and his races.

Has CD seen Ludwig Rütimeyer’s Ueber die Herkunft unserer Thierwelt (Rütimeyer 1867c)?

Discusses J. F. W. Herschel’s theory of active volcanoes existing at the junction of continents and the sea.

Has just arrived in London, and would like to visit the following morning at breakfast time.

Comments on Huxley’s address ["Geological reform", Q. J. Geol. Soc. Lond. 25 (1869): xxxviii–liii].

Physicists have ignored variation in sea-level in calculating effects.

Doubts if sun only source of heat.

Notes average depth of sea is 15 times height of land.

Criticises CD’s concept of permanent continents.

Sedimentary strata of Alleghenies must have derived from continent located where Atlantic is. Thinks enormous amount of denudation, submergence, and elevation may have accompanied relatively insignificant organic changes.

No summary available.

No summary available.

Discusses the possibility of "convergence" occurring; believes it could be only very limited.

Auguste Bravard’s discoveries magnificent.

Bravard has sent pamphlets [Observaciones geológicas (1857) and Monografia de los terrenos marinos terciarios (1858)] with strange doctrine that Pampean deposit is subaerial.

Review of Origin by Wollaston [Ann. & Mag. Nat. Hist. 3d ser. 5 (1860): 132–43] clever and misinterprets CD only in a few places.

Wallace’s MS ["Zoological geography of the Malay Archipelago", J. Proc. Linn. Soc. Lond. (Zool.) 4 (1860): 172–84] admirably good.

Henslow "will go very little way with us". "He, also, shudders at the eye!"

Baden Powell says CD’s statement about eye is conclusive.

Leonard Jenyns cannot go as far as CD, yet cannot give good reason.

Further comments on Jamieson’s theory of the formation of the roads of Glen Roy; paper by Jamieson dealing with glaciation in Scotland ["On the ice-worn rocks of Scotland", Q. J. Geol. Soc. Lond. 18 (1862): 164–84].

Comments on paper by A. C. Ramsay on the glacial formation of lakes ["On the glacial origin of certain lakes", Q. J. Geol. Soc. Lond. 18 (1862): 185–204].

Criticises remarks by John Tyndall on glacial formation of Swiss valleys.