Thanks GM for his excellent criticisms. His observations on the classification of minerals force him to "own that classification may be closely like that due to descent yet have no relation to it".
Asks whether GM has observed any cases of "bud-variations".
Down Bromley Kent
I am much obliged for your striking note. Your remarks on the races of man are interesting; but I have been particularly struck with your observations on the classification of mineral bodies. The idea had crossed my mind in a very vague & feeble manner: it is so difficult to be honest that I fear that I must have unconsciously banished the idea as disagreeable. I see now the full force of the difficulty & I will make a note not to forget this subject. I must own that classification may be closely like that due to descent & yet have no relation to it. I am grateful for your excellent criticism.—
I am very sorry to say that at present I do not feel inclined to subscribe to the
testimonial to M
Dear Sir | Yours sincerely obliged | Charles Darwin
P.S. | As you have been so great an observer, I ask two questions for remote chance of your having facts.— Have you sown seed of weeping trees & what were seedlings?
Have you observed any remarkable cases (excluding mere variegations of leaves) of branch or bud sports, (or as I shall call such cases ``bud-variations'') in leaves, flowers, or fruits.— e.g. nectarines on peach-trees—provence Roses on Moss-roses.— Do not, pray, answer unless you have any facts.—
- f1 3090.f1CD included a reference to the analogy between mineralogical classification and classification in the organic realm in the fourth edition of Origin published in 1866 (Origin 4th ed., p. 488).
- f2 3090.f2The presentation of the testimonial to Newman was announced in the Zoologist 1861: 7457--62. CD was not listed among the subscribers.
- f3 3090.f3CD defined bud-variation as including `all those sudden changes in structure or appearance which occasionally occur in full-grown plants in their flower-buds or leaf-buds.' (Variation 1: 373).
- f4 3090.f4CD included information provided by Maw about varieties of scarlet pelargonium showing unusual correlations in Variation 2: 330--1.