You may remember having met here a Navaho friend of ours, one of the silver-smiths, whom we familiarly called “John the Jeweler.” Early this year he went over to the Kohonino Cañon and stayed there four days. The day after leaving the Cañon he was taken with ague, and every day for twenty days he had a chill followed by fever and delirium. The strangeness of the disease had an extraordinarily depressing effect on him and during these twenty days he was in a state of utter collapse.