Baron Humboldt on American Slavery.

This world-renowned man of science and of the age, in a letter to the traveler Froebel under date of Berlin, Jan. 11, 1858, thus bears his strong testimony against American Slavery-- He writes:

Your next volume on the political future of America, would I, almost the original Adam, gladly live to see.

Continue to brand the shameful devotion to Slavery, the treacherous importation of negroes, under the pretense of their becoming free--a means to stimulate the hunting of negroes in the interior of Africa.

What atrocities have been witnessed by one who has had the misfortune to live from 1789 to 1858.

My book against Slavery (Political Essay on the Island of Cuba) is not prohibited in Madrid, but cannot be purchased in the United States, which you call "The Republic of distinguished people," except with the omission of everything that relates to the sufferings of our colored fellow-men, who, according to my political views, are entitled to the enjoyment of the same freedom with ourselves.

Add to this the anathema on other races of men, forgetting that the most ancient cultivation of humanity, before that of the white Hellenic race in Assyria, in Babylon, in the valley of the Nile, in Iran, in China, was the work of colored men, though not woolly haired.

I still work hard, mostly in the night, because I am unmercifully tormented with a constantly increasing correspondence, for the most part, of not the slightest interest.

I live joyless in my 89th year, because of the much for which I have ardently striven from my early youth, so little has been accomplished.