Sends copy of South America.
Will consult BS's article in the Bulletin.
Recommends article by Daniel Sharpe ["On slaty cleavage", J. Geol. Soc. Lond. 3 (1847): 74–105].
Cites his description of thin laminae in volcanic rocks in Volcanic islands. Suggests similar process may have affected metamorphic schists.
Thanks him for offer of his book [Lehrbuch der physikalischen Geographie und Geologie (1844–7)]. Since he reads German poorly, BS should send book only if short and inexpensive.
Down Farnborough Kent
Permit me to thank you for your extremely kind letter: I have no doubt my small volume
on S. America will reach you soon, as I directed my publishers to send it, at
the same time that I addressed you: I fear you will find little in it that will interest
you, except perhaps the short discussion on cleavage & foliation. Had I known that you were so well acquainted with English, I
should have taken the liberty of writing to you at rather greater length respecting your
interesting views on the structure of the Alpine metamorphic schists;—but so
far from knowing that you had done me the very great honour of making others acquainted
with my volume on Coral Reefs, I did not suppose that you
would ever have heard my name.— I am glad to hear of your paper in the
Bulletin & will take an early opportunity of
consulting. I beg to call your attention to a paper in the last number of the Journal of
our Geolog. Soc., by M
I am greatly tempted to extend this view to the foliation of the metamorphic schists,
not that I suppose that these ever flowed as lava, but that they have been stretched in
uniform planes, by widely-extended elevatory movements. The planes of
“tearing” or “of lesser & greater
tension” determining the planes of crystallization & separation of the
constituent minerals. The parallelism in direction or strike, though not in dip
of the principal axes of elevation with the strike of the planes cleavage in almost
every country points towards this conclusion. And now we know from M
But I ought to apologise for troubling you with so long a letter; & I can only plead the kindness of your note as my excuse.— I beg to thank you cordially for your offer of your work “sur la physique du globe”; I do read German but most imperfectly & with much difficulty & without making any progress towards facility (a remark made by many Englishmen who seldom can boast of a turn for languages), & therefore, if you will permit me speak quite frankly, I should be extremely much pleased to receive it, if it is not a very large & expensive work; for in this latter case, it would, I grieve to say, be almost thrown away on me.
Pray believe me, dear Sir, with much respect, your faithful & obliged servant | C. Darwin
My address in London, for parcels is 7. Park
- f1 1073.f1The recipient is identified by the cover which is addressed to ‘Professor B. Studer | Berne | Switzerland’.
- f2 1073.f2See CD's letter to Bernhard Studer, 20 January , for an earlier discussion of this subject. See also South America, pp. 162–8.
- f3 1073.f3Studer 1844–7, 1: 197–206, includes a number of CD's conclusions in a description of coral reef formation.
- f4 1073.f4Studer 1847a. This contains a more detailed discussion of the subject of Studer 1847b, namely, that the Alpine gneiss stratification at Mettenberg could not have been sedimentary. See letters to Daniel Sharpe, [19 January 1847], and to Bernhard Studer, 20 January .
- f5 1073.f5Sharpe 1847, read 2 December 1846.
- f6 1073.f6Volcanic islands, pp. 65–72. The analogy between glaciers and lava flow is on p. 70.
- f7 1073.f7J. D. Forbes 1842, pp. 350–1.
- f8 1073.f8Studer 1844–7.