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.