A member of the scientific corps attached to the Expedition, which, under the auspices of that enlightened friend of science and liberty, the Archduke Ferdinand Maximilian, was despatched on a voyage round the globe, the high honour has been conferred upon me of having entrusted to my care the publication of the Narrative of our Cruise. In this not more difficult than enviable task, I have been most liberally assisted by my eminent fellow-labourers-the whole literary material collected during the voyage having been kindly placed at my disposal. The comprehensive journals and reports of the venerable Commander-in-Chief of the Expedition, Commodore Wullerstorff-Urbair, as well as the various memoranda of the other members of the Scientific Commission, contributed materially to the elucidation of my own general notes, as well as my observations upon special subjects, which latter chiefly referred to the Geography, Ethnography, and general Statistics of the various countries visited.