Henry Williamson Haynes,
Popular Science Monthly
(1880)
“ Now, a flourishing civilization with admirable arts, and especially a fixed literary language, presupposes ages of development and progress, so that we see the "prehistoric man" thrust thus at least one stage into "the dark backward and abysm of time." But only monuments inscribed by Nature's own hand are our helpers in the arduous task of attempting to measure by a scale of centuries the duration of the existence of "the fossil man." ”
