The problem of dimorphic plants and their fertility.
The problem of dimorphic plants and their fertility.
CD’s oscillating views relating to protection and sexual selection.
On their differences concerning sexual selection and protection.
Sexual selection, protection.
Response to letter about dedication of Malay Archipelago and several scientific papers.
Changes in 5th ed. of Origin.
Now feels individual differences of paramount importance. Fleeming Jenkin has convinced him about "single variations".
CD expressed himself badly. F. Jenkin’s argument was against single variations ever being perpetuated.
Reception of ARW’s book, Malay Archipelago.
Comments on Wallace’s Malay Archipelago.
Hopes ARW has not "murdered too completely your own and my child" [natural selection] in his Quarterly Review article ["Sir Charles Lyell on geological climates and the Origin", 126 (1869): 359–94] on Lyell’s Principles [10th ed.].
CD is attributing more significance to useless variability in new [5th] edition of Origin.
ARW’s review of 10th ed. of Lyell’s Principles [see 6684] is admirable.
But he differs "grievously" with ARW on man. CD sees no necessity for an additional and proximate cause.
On butterfly scales: there are many secondary characters which baffle conjecture.
Was forced to make additions to Origin as short as possible.
Anticipates that all their differences are fated to find expression in projected book on man.
Offers his early MS with useful references related to the distribution of animals. Hopes ARW’s book will not be "little".
Further comments on arrangements for German translation of their joint paper.
Response to ARW’s MS on geological time ["The measurement of geological time", Nature 1 (1870): 399–401, 452–5].
Groans over [what is said about] man.
Would like to call at 10 o’clock on Wednesday morning.
Thanks for a woodcut sent by ARW for Descent.
Congratulations on his removal from London,
and praise of his review of Francis Galton ["Hereditary genius", Nature 1 (1870): 501–3]. CD agrees with every word of it.
Appreciation of eulogy in preface of ARW’s book [Theory of natural selection].
CD sends a "curious drawing" [missing] relating to imitation and protection.
Praise for ARW’s reply [Nature 3 (1870): 49–50] to a paper by A. W. Bennett ["Natural selection from a mathematical point of view", Nature 3 (1870): 30–3] holding that mind is a leading cause of variation.
Is reading proof of his "confounded book" [Descent].
Sends ARW advance copy of vol. 1 [of Descent] for his review in Academy. Vol. 2 is delayed by index. "Do not swear at me more than you can help."