Discusses CL’s paper, "On craters of denudation" [Q. J. Geol. Soc. Lond. 6 (1850): 207–34], which "will be a thorn in the side of É[lie] de B[eaumont]". Notes evidence from Galapagos overlooked by CL. Mentions other examples of craters.
Discusses CL’s paper, "On craters of denudation" [Q. J. Geol. Soc. Lond. 6 (1850): 207–34], which "will be a thorn in the side of É[lie] de B[eaumont]". Notes evidence from Galapagos overlooked by CL. Mentions other examples of craters.
Asks to borrow some more cirripede specimens.
Sends thanks for a note and returned drawing.
He is sending more text.
Thanks him for sending fossil cirripede specimens. Unfortunately one was broken in transit. Asks if James de Carle Sowerby may draw specimens.
Discusses fossil cirripede specimens from RF’s collection. Comments on problems of describing their valves.
Account of the birth of Leonard Darwin, during which he administered the chloroform to Emma.
Continues the water-cure.
Has begun work on fossil cirripedes.
Announces birth of his fourth son, Leonard.
Describes result of his dissection of one of JSB’s cirripede specimens, "now a hundred fold more instructive". Awaits fossils from Copenhagen Chalk for comparison with British specimens. Asks permission for J. de C. Sowerby to draw specimens.
Thanks for fossil cirripede specimens. "Yours is incomparably the finest collection in the world of fossil Secondary cirripedes."
Thanks JSB for specimens of fossil Balanidae.
Thanks JS for fossil cirripedes. Discusses the specimens. Sends thanks to J. G. Forchhammer for specimens.
Discusses mollusc specimens and related notes sent to AH. Thanks him for cirripede specimens. Discusses various cirripede species.
Thanks him for cirripede specimens. Discusses RF’s collection.
Mentions illness.
Describes work on fossil cirripedes. Asks to keep specimens somewhat longer.
Hooker’s imprisonment.
Birth of Leonard Darwin.
Barnacles will never end; on to fossils.
Asks permission to clean specimen. Describes research on cirripedes.
RF’s specimens have arrived.
Because of health, CD will postpone coming to London until all drawings are finished.
Asks JdeCS, if he is able "with any honesty", to "purloin" for him a proof-sheet of Frederick Dixon’s plate with cirripedes [in Geology and fossils … of Sussex (1850)].
Requests statement of total owed to JdeCS as a guide to the future.
Read letter from CD offering a monograph of British fossil cirripedes.
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.