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A branch from the Capparis jamaicensis tree, native to Florida during the spring season.

Branch of Capparis Jamaicensis

A branch from the Capparis jamaicensis tree, native to Florida during the spring season.

Men with their seasons harvest on a cart.

Harvesting

Men with their seasons harvest on a cart.

"Mercury was sent, accompanied by Spring, to demand Persephone of Pluto. The wily monarch consented, but, alas! the maiden had taken a pomegranate which Pluto offered her, and had sucked the sweet pulp from a few of the seeds. This was enough to prevent her complete release, by which she was to pass half the time with her mother, and the rest with her husband Pluto." —Bulfinch, 1897

Pluto, Persephone, and Mercury

"Mercury was sent, accompanied by Spring, to demand Persephone of Pluto. The wily monarch consented,…

"Summer and Winter rays.—Let us suppose that the rays falling perpendicularly on a given extent of surface, impart to it a certain degree of heat, then it is obvious, that if the same number of rays be spread over twice that extent of surface, their heating power would be diminished in proportion, and that only half of the heat would be imparted. This is the effect produced by the Sun's rays in the Winter. They fall so obliquely on the Earth, as to occupy nearly double the space that the same number of rays do in the Summer." —Comstock, 1850

Rays

"Summer and Winter rays.—Let us suppose that the rays falling perpendicularly on a given extent…

"Suppose the Earth to be in her Summer solstice, which takes place on the 21st of June. At this period she will be at a, having her north pole, n, so inclined towards the Sun, that the whole arctic circle will be illuminated, and consequently the Sun's rays will extend 23.25 degrees, the breadth of the polar circle, beyond the north pole." —Comstock, 1850

Seasons

"Suppose the Earth to be in her Summer solstice, which takes place on the 21st of June. At this period…

A diagram that shows constellations, seasons, equinoxes, solstices and astrological signs.

Seasons etc.

A diagram that shows constellations, seasons, equinoxes, solstices and astrological signs.