This is a travel book. On the first of May, 1846, I left Vienna, and, with the exception of slight stoppages at Prague, Dresden, and Leipsic, proceeded directly to Hamburgh, there to embark for the Brazils. In Prague I had the pleasure of meeting Count Berchthold, who had accompanied me during a portion of my journey in the East. He informed me that he should like to be my companion in the voyage to the Brazils, and I promised to wait for him in Hamburgh. I had a second most interesting meeting on the steamer from Prague to Dresden, namely, with the widow of Professor Mikan. In the year 1817, this lady had, on the occasion of the marriage of the Austrian Princess Leopaldine with Don Pedro I. , followed her husband to the Brazils, and afterwards made with him a scientific journey into the interior of the country. I had often heard this lady’s name mentioned, and my joy at making her personal acquaintance was very great. In the kindest and most amiable manner she communicated to me the results of her long experience, and added advice and rules of conduct, which proved afterwards highly useful.