Wherever Mr. Mickley journeyed, so long as any fresh acquisition of knowledge was to be gained the old traveller appeared insensible to fatigue. When halfway up the Great Pyramid an English group who were in his company stopped and insisted upon going no farther. He resolutely continued, and they, unwilling to see so aged a man out-distance them, followed reluctantly, until all reached the summit and congratulated each other on the famous view. In St. Petersburg, Moscow, and other Russian cities, which he visited in the winter season, he was equally untiring and undaunted. As a specimen of his accuracy of observation, he writes during his first journey in Italy, "I counted forty-six tunnels between Pisa and Bologna." Several severe accidents fell to his lot. In Rome, while exploring a dark, arched passage, he fell into "Cicero's Well," receiving severe bruises. In a street in Constantinople, where there are no sidewalks, he was knocked down by a runaway horse and taken up for dead, remaining insensible for several hours. The former of these mishaps occupies three lines in his diary; the latter, twelve lines. On his third visit to Leipsic he was confined in his room for several weeks with an attack of smallpox. But in regard to none of these accidents, although an aged man, thousands of miles from home, and entirely alone, does he betray any symptoms of apprehension. He merely adds, on the date of his recovery from the attack at Leipsic, "This sickness has detained me much longer than I had expected to stay."