COUNT CASTELNAU, a French Savant who is well known in the United States, has lately communicated to the _Geographical Society of Paris_ the result of some personal inquiries at Bahia, in South America, respecting a race of human beings with tails. We suppose there is not a particle of truth in the information he received, but he is so respectable a person that his report deserves some notice. "I found myself in Bahia," he says, "in the midst of a host of negro slaves, and thought it possible to obtain from them information of the unknown parts of the African continent. I soon discovered that the Mohammedan natives of Soudan were much farther advanced in mind, than the idolatrous inhabitants of the coast.--Several blacks of Haoussa and Adamawah related to me that they had taken part in expeditions against a nation called _Niam Niams_, who had _tails_. They traced their route, on which they encountered tigers, giraffes, elephants, and _wild camels_. Nine days were consumed in traversing an immense forest. They reached at length a numerous people of the same complexion and frame as themselves, but with tails from twelve to fifteen inches long, &c., &c." * * * * * The Paris journals announce that M. Vallee, one of the officials of the Jardin des Plantes, has succeeded in hatching a turtle by artificial means. On the 14th of July last, he found some turtles' eggs on the sand in the inclosure reserved for the turtles, and placed three of them under his apparatus in the reptile department. On the 14th of this month he examined the eggs, and found a turtle, about as big as a walnut, in full life. He hopes to be able to rear it. This is the first case on record of one of these creatures having been produced artificially. Recent Deaths. The _Brussels Herald_ announces that the aged naturalist, Savigny, has lately died in Paris. Little has been heard of him for some time in the scientific world. He was for thirty years a member of the Academy of Sciences, and was among the _savants_ who accompanied Bonaparte to Egypt. * * * * *