CHAPTER LII. Philology--Structure of the Indian languages--Letter from Mr. Duponceau--Question of the philosophy of the Chippewa syntax--Letter from a Russian officer on his travels in the West--Queries on the physical history of the North--Leslie Duncan, a maniac--Arwin on the force of dissipation--Missionary life on the sources of the Mississippi--Letter from Mr.Boutwell--Theological Review--The Territory of Michigan, tired of a long delay, determines to organize a State Government..