It is proposed by the author to publish the result of his observation on the mythology, distinctive opinions, and intellectual character of the aborigines. The character and peculiarities of the tribes have been studied under favourable circumstances and new aspects; offering, it is believed, an insight into their mental constitution, as yet but imperfectly understood. Hitherto our information has related rather to their external customs and manners, their physical traits and historical peculiarities, than to what may be termed the philosophy of the Indian mind. Such an examination required time and diligence. Much of the earlier part of it was necessarily devoted to clearing the ground of inquiry, by acquiring the principles of the languages, and obtaining data for generalization.