By James C. Pilling. Mr. Henry R. Schoolcraft, while engaged in the preparation of his work—"Information respecting the History, Condition, and Prospects of the Indian Tribes of the United States"—sent to various persons residing among the Indians a "Comparative Vocabulary of the Languages of the Indian Tribes of the United States," a quarto paper of 25 pages, comprising 350 words, and the numerals one to one billion. The returns from this were for the most part incorporated in his work; a few,