From Thomas Meehan 22 September 1874
Sep 22 1874
Chas. Darwin Esqr
My Dear Sir
You wrote to me last year acknowledging the photo—of my friend Prof. Cope, and stating that my own sent to you through Mr. Rosengarten had failed to come to hand.1 I had no more at that time, and only now have had a chance to have a few more taken.
Knowing it would interest you, I mailed a few weeks ago a copy of my address at Hartford, and also a brief newspaper report of the discussions thereon.2 I think, as you will see I believe, that my good friend Prof. Gray did not apprehend the full nature of my facts, as I saw him enter the hall, when the paper had been half read through.3 I think his remarks have however tended to misdirect the public press. The Popular Science Monthly, for instance, remarks, “on the contrary, all except the Author regarded the facts as favoring Mr. Darwins Theory of Natural Selection”.4 I am sure there was nothing in my paper, nor in any subsequent remarks of mine, which warranted the “exception”. My point was that there are other factors in the origination of form, besides—not opposed to—Natural Selection, both acting perhaps in conjunction therewith.
I am still gathering facts in relation to the connection between color and sex in plants;5 but my numerous occupations prevent me from working them up as rapidly as I would like. One of the prettiest facts is in Daucus Carota. In this part of the world the umbel often has male flowers sparingly. Usually one in the center. That is the gynoecium is arrested at an early stage of its growth, and the stamens become remarkably perfectly formed. These male flowers are always highly colored.6 Still in these, as in most other studies of natural phenomena, come in contradictions which make me hesitate about any positive conclusion. Thus the pistils of Corylus Americana and I suppose others, are deeply rose tinted,—while the male catkins (all catkins?) are in a sense colorless.7
I am continually impressed with the apparent fact that the world knows comparatively nothing of plants as living beings. Most is dry Herbarium knowledge. And we are far behind you in Europe. Still we have a few ardent workers, among whom the best is possibly Dr. Engelmann, and I wish he would publish more. I have just a brief note from him in Colorado, where he is rusticating this Autumn, in which he tells me he has discovered remarkable behaviour in the stamens and pistils of the Gentians of that Section—the large flowered ones acting differently to the small (including Swertias) and which has a great and interesting bearing on cross and Insect fertilization.—8 Forgive this gossip. “Pen in hand” is a great temptation.
Very truly your | Thomas Meehan
Footnotes
Bibliography
Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 29 vols to date. Cambridge: Cambridge University Press. 1985–.
Engelmann, George. 1863. New species of Gentiana, from the alpine regions of the Rocky Mountains. Transactions of the Academy of Science of St. Louis 2 (1861–8): 214–18.
Engelmann, George. 1878. Gentianeæ. In Report upon United States geographical surveys west of the one hundredth meridian. Vol. 6, Botany. Washington: Government Printing Office.
Forms of flowers: The different forms of flowers on plants of the same species. By Charles Darwin. London: John Murray. 1877.
Meehan, Thomas. 1869. On the sexes of plants. Proceedings of the American Association for the Advancement of Science (1869): 256–60.
Meehan, Thomas. 1874. Change by gradual modification not the universal law. Proceedings of the American Association for the Advancement of Science (1873) pt B: 7–12.
Summary
Sends CD his photo
and a copy of his address at Hartford ["Change by gradual modification not the universal law", Proc. Am. Assoc. Adv. Sci. (1874) pt 2: 7–12]. Does not believe his observations are unfavourable to natural selection but feels there are other factors involved in the origin of form.
Discusses further his work on colour and sex in plants; the linking of high colour and maleness.
Letter details
- Letter no.
- DCP-LETT-9651
- From
- Thomas Meehan
- To
- Charles Robert Darwin
- Sent from
- Gardeners’ Monthly , Germantown, Pa.
- Source of text
- DAR 171: 110
- Physical description
- ALS 4pp
Please cite as
Darwin Correspondence Project, “Letter no. 9651,” accessed on 30 November 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-9651.xml
Also published in The Correspondence of Charles Darwin, vol. 22