- Does it occur to your arboreal, if not river- drift mind, that there are people under this room? - "Fernley House", Laura E. Richards.
- Taking Italy as a whole, we may say that she is eminently fitted by climate, soil, and superficial formation, to the growth of a varied and luxuriant arboreal vegetation, and that in the interests of self- protection, the promotion of forestal industry is among the first duties of her people. - "The Earth as Modified by Human Action", George P. Marsh.
- It was instinct- a familiar phase in a child- that induced him to put pebbles, twigs, and small articles in his mouth until he found what was pleasant to his taste and eatable- nuts and berries; and it was instinct, the most ancient and deeply implanted,- the lingering index of an arboreal ancestry,- that now taught him the safety and comfort of these woody shades, and, as night came on, prompted him- as it prompts a drowning man to reach high, and leads a creeping babe to a chair- to attempt climbing a tree. - ""Where Angels Fear to Tread" and Other Stories of the Sea", Morgan Robertson.