James Fenimore Cooper to the characters of The Last of the Mohicans which had been published only in February of that year. In 1828 Cass again attacked Heckewelder and incidentally Cooper, say- ing that "His Uncas and his Pawnee Hard-Heart, for they are both of the same family, have no Hying prototype in our forests." Cooper had made himself superficially vul- nerable to this attack by mechanically repeating Uncas and Magua in his Hard-Heart and Mahtoree of The Prairie (1827) and making them Plains Indians, a group that the great Indian agent knew. But this unimportant bit of lazi- ness is not decisive of the true question: Who knew the "real" Indian? the "ardent, benevolent missionary" of the eighteenth century; or the nineteenth-century government agent who dealt with them on the treaty-ground, poor and almost naked, exchanging their ancestral lands for food, brandy, firearms, trinkets? The opportunity for knowledge did not necessarily lie with the man of affairs. "As just would it be," Cooper somewhat cynically said in his 1850 preface, "to draw conclusions of the general state of American society from the scenes of the capital, as to suppose that the negotiat- ing of one of these treaties is a fair picture of Indian life."