"Because of their greater refrangibility, the focus of the violet rays is nearer the lens than the focus of the red rays, as illustrated. If the screen is as near the lens as the focus marked v, the outer fringe is red. If the screen is as far from the lens as the focus marked r, the outer fringe is violet. This difference in the deviation of differently colored rays is called chormatic aberration." -Avery 1895

Chromatic Aberration

"Because of their greater refrangibility, the focus of the violet rays is nearer the lens than the focus…

A violet-colored flower that has an erect stem, with many branches.

Plumbago Europaea

A violet-colored flower that has an erect stem, with many branches.

The flower of the Violet.

Flower

The flower of the Violet.

The flower of the Violet.

Flower

The flower of the Violet.

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen, 1896

Heartsease

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen,…

"Violet Land-Crab." — Galloway

Land-Crab

"Violet Land-Crab." — Galloway

"This is also a very well known flowering plant, of which there are many varieties - white, light and dark blue, single and double. The one most in cultivation with the finest large sweet-scented flowers is V. Marie Louise, which surpasses all other double blue Violets in the profusion of its flowers, richness of color, and delicious fragrance."—Heinrich, 1887

Violet, Marie Louise

"This is also a very well known flowering plant, of which there are many varieties - white, light and…

"Is five to seven inches long,; blueish-black, with bright yellow spots; habits nocturnal, living under rocks, stones, and decaying trees, found from Maine to Maryland." — Goodrich, 1859

Violet-colored salamander

"Is five to seven inches long,; blueish-black, with bright yellow spots; habits nocturnal, living under…

The violet snail is a floating sea slug. The snail is able to float due to the mucus covered raft that it produces.

Violet Snail

The violet snail is a floating sea slug. The snail is able to float due to the mucus covered raft that…

An illustration showing a "floral diagram of [the' Viola [plant], showing arrangement of parts in horizontal plan. b, pair of bractoeles below the flower; s, sepals; p, petals; st, stamens; o, ovary" (Britannica, 102).

Viola Diagram

An illustration showing a "floral diagram of [the' Viola [plant], showing arrangement of parts in horizontal…

A large genus of herbaceous plants, which are found in most parts of the glove, including about 200 varieties.

Violet

A large genus of herbaceous plants, which are found in most parts of the glove, including about 200…

"Corynostylis Hybanthus. 1. a set of stamens, each having the connective lengthened beyond the anther, in the form of a scale; 2. a spurred petal; 3. a transverse section of an ovary, showing the three parietal placentae; 4. a ripe fruit; 5. an embryo." -Lindley, 1853

Violet

"Corynostylis Hybanthus. 1. a set of stamens, each having the connective lengthened beyond the anther,…

Violet of blue color.

Blue Violet

Violet of blue color.

An illustration of a dog violet plant and it's fruit. Viola canina (Heath Dog-violet or Heath Violet) is a species of the genus Viola, native to Europe, where it is found in heaths, fens, and moist woodlands, especially on acidic soils.

Dog Violet

An illustration of a dog violet plant and it's fruit. Viola canina (Heath Dog-violet or Heath Violet)…

Three violets.

Three Violets

Three violets.