In the last number of the Cherokee Phoenix we find a letter to Elias Boudinot the Editor, from the celebrated Baron Humboldt, dated at Berlin in Prussia, in November last, in which the baron expresses his admiration at the progress of the Cherokees in civilization and learning, and desire that his name may be placed on the list of subscribers to the Phoenix. What will this learned nobleman think of our civilization and humanity when, in the first numbers of the paper which he persuses he finds, along with the evidence of the Wonderful improvement of the Indians, the documents which announce, the determination of Georgia and the United States to drive them from their beautiful country, and compel them to herd again with savages. N. Y. Obs.