Rev. Dr. Dana, of Norwich, Conn., who has given no little time to the study of Africa, in a recent letter to the New York _Herald_, on the other hand, makes the following statements: That the country in the interior east of Liberia is healthy, productive and accessible. Boporo, 75 miles inland, is elevated, with an invigorating climate and a productive soil. “The exhibit of Liberian products at the Centennial was sufficient to set beyond all question the richness of the country, and the returns it makes to average industry.” A beginning of manufacturing has been made. The government sustains primary schools, and five higher schools are managed by missionary societies, and a college. The war with the natives of Cape Palmas has terminated and a treaty been made. The Methodist, Episcopal, Baptist and Presbyterian Churches are represented there, and have made efficient progress. Iron ore is found there, and coffee plantations are a source of wealth. The natives, both Pagan and Mohammedan, are represented by Dr. Blyden as anxious to have Christian settlers occupy the beautiful hills and fertile plains in their neighborhood. Dr. Dana concludes: “A general exodus to Liberia of the colored people of the South need not be apprehended, but it is anything but commercially wise or politically just to disparage the condition or speak derisively of the prospects of the African Republic.” * * * * * The American Colonization Society has sent to Liberia, since the close of the war, 3,137 colored persons. It is now preparing to dispatch another expedition on the 2d of January next. The number of emigrants will depend, to a considerable extent, on the means yet to be contributed for the purpose. The society is constantly receiving urgent applications for passage and settlement. These, with other movements, especially in South Carolina and Florida, represent, it is estimated, a quarter of a million of men, women and children. * * * * * INDIAN NOTES. Notwithstanding the successful termination of the Nez Percès war, in which General Howard so happily vindicated both his valor and his courtesy, there is no settled and general peace among the Indian tribes. Some 1,700 Sioux broke away while being removed from the Red Cloud agency to their new agency on the Missouri River, and are now on the war path. They have since been committing depredations in the immediate vicinity of Deadwood, Dakota. They number about two hundred lodges, a number not sufficient in itself to render operations against them on a large scale necessary, but probably quite large enough to keep our small available force (exhausted as it is by the long campaign against the Nez Percès) fully occupied should the Indians open hostilities. Although a general Indian war is not considered to be imminent, such an event is not impossible as the outcome of the present troubles, and may be deemed almost probable.