Extract from beginning of chapter:

Anyone who is studying dissected volcanoes and ancient lavas and breccia should have some acquaintance with active volcanoes and regions of modern volcanism. So I decided to visit Vesuvius and the Sicilian region, incidentally make the acquaintance of some of the British petrographers, and pay my respects to Rosenbusch in Heidelberg. By the end of February 1890, I was able to leave Washington for a two-month trip, going directly from New York to London via Southampton. Although I had never met Judd or Teall, they were hospitable enough, when they learned of my intention to stop in London on my way to the Continent, to invite me to come directly to their homes upon my arrival. Judd's note reached me before I left Washington, and Teall's caught me before I left the steamer at Southampton. It resulted in my spending a few days with Judd on my way out and in visiting Teall on the way back—a most memorable experience, quite as enlightening as the study of active volcanoes.

IMPRESSIONS OF JOHN JUDD

After a night at Charing Cross Hotel, I found Judd in his rooms in the “science schools,”¹ South Kensington, and received a most cordial welcome. Probably no British geologist equaled Judd in genial temperament and the ability to be entertaining. His manner was frank and outspoken; his attitude toward his colleagues was generous and not critical. He took an enthusiastic interest in petrography and expressed his opinions with such positiveness that one was led to believe