Helen A. Clarke, A Guide to Mythology (1908)
“ At this time, too, it is likely that the worship of animals arose, for almost every tribe of savages had a sacred animal which, except in rare instances, it was never allowed to kill and from which it often imagined itself descended.After many ages, mankind began to till the ground, and to raise grain and vegetables, then plants and trees were more especially observed by them, and the mythical stories have, in consequence, more about plants and trees in them; and, as they had sacred animals, they had also sacred trees or plants, and worshipped them or imagined themselves descended from them. ”
