Messenger of the Gods

Iris

Messenger of the Gods

Landscape with rainbow and sheep.

Landscape

Landscape with rainbow and sheep.

"The inner or primary bow is much brighter than the other; the outer or secondary bow has the order of colors revered, as indicated." -Avery 1895

Secondary Rainbow

"The inner or primary bow is much brighter than the other; the outer or secondary bow has the order…

Salisbury Cathedral (From the Meadows), a painting by John Constable exhibited in 1831.

Salisbury Cathedral (From the Meadows)

Salisbury Cathedral (From the Meadows), a painting by John Constable exhibited in 1831.

"Solar Spectrum.—If a ray, proceeding from the sun, be admitted into a darkened chamber, through an aperture in the window shutter, and allowed to pass through a triangular shaped piece of glass, called a prism, the light will be decomposed, and instead of a spot of white, there will be seen, on the opposite wall, a most brilliant display of colors, including all those seen in the rainbow." —Comstock, 1850

Solar Spectrum

"Solar Spectrum.—If a ray, proceeding from the sun, be admitted into a darkened chamber, through…