From J. D. Caton 2 [October] 18681
Ottawa Ills.
Dec. 2. 1868
Prof. Charles Darwin.
Dear Sir.
Your very kind note of the 18th ult. is this moment received.2 It is gratifying to find a naturalist who thinks so much detail not tedious, and especially to receive such marked communication from so distinguished a source.
I am still continuing my observations on the deer family, and since my paper was written have observed some new facts, to me quite as interesting as any there stated.3 First, allow me to mention, that two weeks ago, after the red coat had been entirely replaced by the blue, upon two specimens of the Virginia deer, one a castrated buck and the other a fawn doe, I observed a line of spots on either side of the back.4 On the doe each spot is clearly distinguishable from near the root of the tail to the shoulder blade, at which the two rows are four inches apart. As they run back they gradually approach each other till at the tail they are two and a half inches apart. The spots are twenty one on each side about ths. inch in diameter and about one inch and a quarter apart from outside to outside.5
The blue coat in each is now not over half an inch long, very fine and soft, and about the darkest in color of any in the park. The spots are a yellowish shade and so distinct that they may be distinguished fifty feet away. The forward ones are most distinct and they fade perceptibly, as they proceed back. Those upon the male, whose ground coat is considerably the darkest, the spots fade away, so that but one or two are clearly distinguishable at the hip joint. The fact that they are the least distinguishable on the darkest ground I have considered interesting for in other specimens of decidedly lighter shades than these I have not yet observed the spots. All of the spots on both specimens are nearly of the same size and distance apart in the rows.
Before I made these observations the young fawns had shed too much of their spotted coats to enable me to critically compare the upper lines of spots on the fawns with those observed in these adults, which are now four years old.6 I have about ten deer that are tame enough to allow me so near as to observe the spots, so that of these twenty percent are spotted. These spots are not a freak of nature like the gray elk but have their origin in ancestry. I shall watch with care to see how long these spots remain visible. I expect as the hair grows longer they will disappear. Should they continue till cold weather, when the wild deer come up for corn, I shall look for spots on them.
I remember in former years to have observed these spots on some specimens, but I did not bestow the attention upon it which I ought. I shall look with interest to see if these spots reappear in the same specimens.
I have some new observations of the horns but will not trouble you with them.
Yours very truly | J D Caton
P.S. Since writing the foregoing, I have taken a walk through my grounds with Hon. B. C. Cook M.C.7 for the purpose of repeating the foregoing observations and have to correct one statement.
The castrated buck on which I had observed the spots, was not the black tailed deer of which I have spoken in my paper, but in one of a lighter color and the largest variety.8 But to day I find the spots developed on the black tail deer, but much fainter than on either of the other specimens, but still they can be counted from the shoulder to the hip, sixteen on a side. I also observed on a doe that has raised a fawn this summer and has not shed all of her red coat two rows of spots in the same positions as the others but differing in this: these spots are of the old red coat which still remains, while all around them, the red is gone and is replaced by the blue.9 The red had not gone quite back to the hips so as to allow me to distinguish the spots all the the way, but to continue those discernible through the red, with the same spaces, there would be sixteen (16) as in the others. That these tufts of the red coat are connected with the phenomena I have described I cannot doubt, but I was still surprised to observe, that in place of one of the spots where the red tuft had disappeared, I could find no spot of a lighter shade than the surrounding blue coat. This was the only specimen on which I was able to trace a line of red tufts, although several were at hand, with about the same amount of red coat remaining. Here are forty percent of the deer carefully examined showing the spots.
I find the wild turkey does not breed the season it is one year old, as the domestic turkeys invariably do. I have a pair raised from the eggs of the wild turkey found in the woods last year. The cock is the most beautiful and magnificent bird I ever saw. I hope to be able to make some valuable observations.10
In my flock of bronze turkeys which have always hitherto bred remarkably true, I have this year three exceptions in a brood of thirteen. It is not a reversion to the wild parent, but is further from it than their immediate parents.11
Pardon my long stories. | JDC
CD annotations
Footnotes
Bibliography
Calendar: A calendar of the correspondence of Charles Darwin, 1821–1882. With supplement. 2d edition. Edited by Frederick Burkhardt et al. Cambridge: Cambridge University Press. 1994.
Caton, John Dean. 1868. American Cervus. Read before the Ottawa Academy of Natural Sciences, 21 May 1868. Ottawa, Illinois: Osman and Hapeman.
Caton, John Dean. 1880. Miscellanies. Boston: Houghton, Osgood.
Descent: The descent of man, and selection in relation to sex. By Charles Darwin. 2 vols. London: John Murray. 1871.
National cyclopædia of American biography. 63 vols. New York: James T. White & Co. 1892–1984.
Variation: The variation of animals and plants under domestication. By Charles Darwin. 2 vols. London: John Murray. 1868.
Whitehead, George Kenneth. 1993. The Whitehead encyclopedia of deer. Shrewsbury: Swan Hill Press.
Summary
Observations on lateral spots on coats of two specimens of deer. PS on habits of wild and domestic turkeys.
Letter details
- Letter no.
- DCP-LETT-6488
- From
- John Dean Caton
- To
- Charles Robert Darwin
- Sent from
- Ottawa, Ill.
- Source of text
- DAR 83: 167–9, DAR 161: 125
- Physical description
- ALS 7pp †
Please cite as
Darwin Correspondence Project, “Letter no. 6488,” accessed on 24 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-6488.xml
Also published in The Correspondence of Charles Darwin, vol. 16