"No barriers, no masses of matter however enormous, can withstand the powers of the mind; the remotest corners yield to them; all things succumb; the very Heaven itself is laid open."--Marcus Manilius, Astronomica, 40 B.

Miner's Candle (Oreocarya virgata) Mary Vaux Walcott

Closed Gentian (Gentiana andrewskii) Mary Vaux Walcott

Tcha-dés-sa-ko-máh-pee, Bear's Child George Catlin

Skating in Central Park Agnes Tait

Riding out a Gale Edward Moran

Morning William Henry Rinehart