Nevertheless, the cost of becoming popular may appear excessive—not only to the student who begrudges the time and energy that must be drawn from scientific work, but to the scientist who is asked to popularize his study in terms repugnant to his sense of truth or propriety. Hitherto, American publishers appear to have proposed only to bring Fenimore Cooper up to date, merely to add to the over-abundant lore of the white man about the Indian.