Gives his opinion that the larval antennae in Lepas correspond with the inferior antennae, the superior not present, as in most Daphnidae. [See 1381.]
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Gives his opinion that the larval antennae in Lepas correspond with the inferior antennae, the superior not present, as in most Daphnidae. [See 1381.]
Responds to CD’s criticism of his use of word "Kingdom" in discussing geographical distribution of Crustacea.
Responds to CD’s query about the blind fauna of Mammoth Cave.
Gives information from L. Agassiz. Distribution of Crustacea, especially along southern coastlines.
Agassiz has informed him that the mice and rats of Mammoth Cave are American in type.
Alludes to CD’s doubt of the principle that "progress of life on the globe is parallel with the development in different tribes". Outlines his own ideas on the "unfolding of the type-idea" and its "parallelism with the law of development in the embryo".
In reply to CD’s query [see 2072], JDD describes what little is known about the crustacea of the Antarctic and southern lands.
Knows of no species of the cold temperate south identical with those of the cold temperate north.
Regrets delay in sending pamphlets for JDD.
Thanks him for information concerning cirripedes.
Sends thanks to Charles Pickering for information about plant distribution.
Discusses boring species of cirripedes.
Believes Harry D. S. Goodsir mistaken about parasites on Balanus ["Observations on organs of generation in Crustacea", Edinburgh New Philos. J. 36 (1843–4): 183–6]. In fact parasites are the males of the species.
Discusses attachment of antennae in larvae of cirripedes.
Asks for information about how parasitic cirripedes are attached to host.
Thanks him for letter and Balanus specimen.
Acasta is curious; may be a new genus.
Is sending copy [of Fossil Cirripedia 1]. Correcting proofs [of Living Cirripedia 1].
Mentions comment by Hermann Abich on JDD’s chapters on the Sandwich Islands [in Geology (1849)].
Sending first volumes on Living and Fossil Cirripedia. Solicits JDD’s opinion, especially on sexual relations of Scalpellum and Ibla, on which he "hardly expect[s] to be believed".
Sends unusual crustacean specimen collected by B. J. Sulivan.
The Sporillus sent by JDD is a very curious species of Acasta [see Living Cirripedia 2: 319].
Asks JDD to identify and give geographical distribution of pieces of coral in which some cirripedes are imbedded.
Gratified by JDD’s opinion of his work.
Discusses problem of homologies of cirripede larva in first stage and reasons for his view.
JDD’s information on corals was just what CD needed.
Would like specimen of blind cave rat described by B. Silliman [Jr] ["On the Mammoth Cave of Kentucky", Am. J. Sci. 2d ser. 11 (1851): 336] for Waterhouse to examine.
Discusses origin of Australian valleys; he disagrees with JDD’s river-erosion hypothesis.
Thanks JDD for information.
Discusses Acasta sporillus.
Comments on review of first volume of Living Cirripedia [Am. J. Sci. 2d ser. 14 (1852): 125–7].
Asks JDD to examine Lerneidae.
Will read with interest the geographical discussion of Crustacea when JDD’s volume [Crustacea (1852–5)] appears. John Lubbock will purchase a copy.
Discusses error in Living Cirripedia.
Admires JDD’s work on Crustacea, corals, and geology.
Commends young John Lubbock to his attention. Hopes JDD can give him encouragement; if he can resist his "great wealth, business, and rank, he may do good work in Natural History".
Thanks JDD for copy of his Crustacea [1852–5]
and D. D. Owen’s Report [of a geological survey of Wisconsin, etc. (1852)].
Responds to JDD’s objections to his views on the three pairs of appendages in larvae of cirripedes. Reports observations which confirm his views.
Gives his confidential opinion of A. White, C. S. Bate, T. Bell, and W. Baird.
Interested in JDD’s observation that Crustacea are not most developed in the tropics. If JDD ever works it out either in number of species or rank, CD would be glad to have result.
Comments on article by Henri Milne-Edwards ["Crustacés", Ann. Sci. Nat. (Zool.) 18 (1852): 109–66].
Asks whether the blind cave animals described by B. Silliman Jr [Am. J. Sci. 2d ser. 11 (1851): 332–9] belong to genera found only on the American continent.
On geographical distribution of Crustacea, CD asks whether northern genera sent species to the Southern Hemisphere or did southern genera send species north?
Does he know of any author who has described fossil trees in South Shetland Islands?
Thanks JDD for replies to queries [in 1925]; would like to know whether teeth of cave rat are of New or Old World type.
Wishes Louis Agassiz would publish his theory of parallels of geological and embryological development. "I wish to believe but have not seen nearly enough as yet to make me a disciple."
Is working hard on variations and origin of species, but fears it will be a couple of years before he publishes.
Describes his recent work on rabbits and pigeons.
The dispersal of land Mollusca is a most difficult problem.
Confesses he is sceptical of immutability of species; discusses difficulty of proving it.
Thanks for sending paper on geological development (Dana 1856). Discusses infertility of species. Discusses first part of Asa Gray’s paper (A. Gray 1856–7). Thanks for note on the Cave Rat. Discusses a new species of fossil cirripede, in the genus Chthamalus. Explains his interest in pigeon breeding.
Asks whether Crustacea from temperate parts of the Southern Hemisphere are more strongly analogous to those in same latitudes of the Northern Hemisphere than are Arctic to Antarctic Crustacea.
Discusses astonishing finds of mammalian and reptilian remains in Purbeck beds; notes reactions of Lyell.
Has doubts about Richard Owen’s recent classification of mammals [J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].
Works away [on Natural selection].
Asa Gray has given valuable assistance.
Thanks him for information concerning Crustacea.
Comments on natural history study in the U. S.
Mentions work done by Huxley on Crustacea ["Description of a new crustacean", J. Geol. Soc. Lond. 13 (1857): 363–9];
John Lubbock on larvae of Diptera.
Thanks for note of 13 May and tracings of the "curious Bopyrid".
Is astonished at amount of work JDD does and frightened it will cause ill-health, such as CD has experienced.