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Thanks for suggestion to try effect of dry heat on pollen and for other new information on pollen. Will begin new experiments soon, hoping to cure hay-fever.
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Believes some flowers fail to produce seed because of the access of too great a quantity of pollen. Asks for CD’s opinion and references.
Seeks the assistance of a professional chemist in securing a qualitative analysis of the fluid secreted by the glands of Drosera which have the power of dissolving animal matter out of the bodies of insects. [See 8979.]
Thanks JLGK for photos of natives of Queensland.
Asks if he can observe whether worms throw up castings in wet weather.
Sends his paper on Ophrys insectifera, translated into German by H. G. Reichenbach [Abh. Kais. Leopold.-Carol. Dtsch. Akad. Naturforsch. 33 (1870) no. 3], which shows the intermediates between O. aranifera and O. apifera. He has since gathered information on variation in Ophrys.
JLGK’s public advocacy of Darwinism brings him into numerous arguments.
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Thanks for the three essays: although they are beyond his scope, they seem to him very interesting.
HE’s facts about the Mexican ant [Myrmecocystus mexicanus] are "most wonderful & interesting".
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No summary available.
Sends sodium carbonate for Drosera experiments. Will try to determine what the solvent is.
Thanks EF for his offer of assistance. Could the viscid secretions [in glands of Drosera] contain pepsin? Will the sodium carbonate render the testing of organic matter difficult? [See 8979.] Will send the fluid in a fortnight.
JDH reports that he & [Thomas Henry] Huxley are enjoying their time in France. He asks Thiselton-Dyer how his class is going [Thiselton-Dyer took over Huxley's summer course in elementary biology in 1873 as Huxley was away for his health]. JDH & Huxley have been studying a volcanic phenomenon [volcanic plug] & subsequent glacial action. JDH finds the scenery beautiful. Although the flora is diverse he is not collecting plants. Asks Thiselton-Dyer to tell Daniel Oliver he prefers Le Puy to Nuremberg & to pass on any messages from Oliver or [John] Smith.
Sends a bottle containing fish which Lord Arthur Russell had promised to send.