As will be seen, the present writer has not only described the general appearance of the regions he visited, but has given the best information he was able to collect of the geological features of the country, and of its probable mineral wealth; and, slight though it may be, he had the gratification of finding that the hints he threw out at the Cape and elsewhere were acted upon, that mining companies were formed, and that mining operations are now carried on to some extent in regions heretofore considered as utterly worthless. The Author has also spoken at some length of the religion, and manners, and customs of such of the native tribes (previously all but unknown to Europeans) visited by him during his several journeys. He also noted many of their superstitions, for too much attention, as has been truly observed, can not be paid to the mythological traditions of savages. Considerable discretion is, of course, needful in this matter, as, if every portion were to be literally received, we might be led into grievous errors; still, by attending to what many might call absurd superstitions, we not only attain to a knowledge of the mental tendencies of the natives, but are made acquainted with interesting facts touching the geographical distribution of men and inferior animals. Since the different members constituting the brute creation are so intimately connected with the economy of man, and since many of the beasts and birds indigenous to those parts of Africa visited by the Author are still but imperfectly known, he has thought it advisable to enter largely into their habits, &c., the rather as natural history has from childhood been his favorite pursuit, and is a subject on which he therefore feels conversant; and though part of what he has stated regarding the rhinoceros, the hippopotamus, the koodoo, the ostrich, and others of the almost incalculable varieties of animals found in the African wilderness may be known to some inquirers, it is still hoped that the general reader will find matter he has not previously met with. The larger portion of the beautiful plates to be found in this work (faithfully depicting the scenes described) are by Mr. Wolf—“the Landseer of animals and vegetation,” to quote the words of the Earl of Ellesmere in a note which his lordship did me the honor to write to me. The Author has endeavored in the following pages faithfully, and in plain and unassuming language, to record his experiences, impressions, feelings, and impulses, under circumstances often peculiarly trying. He lays claim to no more credit than may attach to an earnest desire to make himself useful and to further the cause of science. It is more than probable that his career as an explorer and pioneer to civilization and commerce is terminated; still he would fain hope that his humble exertions may not be without their fruits.