A tally chart is a method of recording data using stroke marks.

Chart Tally

A tally chart is a method of recording data using stroke marks.

An American civil rights leader who helped introduce women's suffrage into the United States.

Susan B. Anthony

An American civil rights leader who helped introduce women's suffrage into the United States.

A French poet, human rights activist, and exponent of the Romantic movement in France.

Victor Hugo

A French poet, human rights activist, and exponent of the Romantic movement in France.

Members of the Assembly gathered together on the night of August 4th, 1789, and drew up the Declaration of the Rights of Man and the Citizen, which was a key document of the French Revolution.

The Session of August 4

Members of the Assembly gathered together on the night of August 4th, 1789, and drew up the Declaration…

The common name of geranium is crane's bill. The flowers of geranium anemonaefolium are large and purplish red. The height of the shrub is one to two feet tall.

Geranium Anemonaefolium

The common name of geranium is crane's bill. The flowers of geranium anemonaefolium are large and purplish…

The flowers of geranium argenteum are pale red with darker stripes. The leaves are hoary or silky and are five to seven parted.

Geranium Argenteum

The flowers of geranium argenteum are pale red with darker stripes. The leaves are hoary or silky and…

The flowers of geranium ibericum platypetalum are deep violet with reddish streaks. The flowers are more than one inch in diameter. The plant grows between one and two feet in height.

Flowering Branch of Geranium Ibericum Platypetalum

The flowers of geranium ibericum platypetalum are deep violet with reddish streaks. The flowers are…

The flowers of geranium wallichianum are large and purple. The leaves are five parted and have silky hairs. The stem is also purple.

Geranium Wallichianum

The flowers of geranium wallichianum are large and purple. The leaves are five parted and have silky…

The common name of pelargonium is stork's bill. The endlicherianum variety has large, deep rose colored flowers. The two larger petals are marked with five deep purple nerves. The plant grows two feet tall.

Pelargonium Endlicherianum

The common name of pelargonium is stork's bill. The endlicherianum variety has large, deep rose colored…

Pelargonium inquinans flowers vary from intense scarlet, to rose colored, to white. The flowers bloom in July. The shrub grows two feet tall.

Flowering Branch of Pelargonium Inquinans

Pelargonium inquinans flowers vary from intense scarlet, to rose colored, to white. The flowers bloom…

Diagrams of how an image is displayed with a normal eye (top image), myopic or nearsighted eye (middle image), and a hypermetropic or far-sighted eye. In a human, the retina "sees" an image upside down and the brain rights the image.

Human Eye

Diagrams of how an image is displayed with a normal eye (top image), myopic or nearsighted eye (middle…

The Gadwall (Chaulelasmus streperus) is a widely distributed duck, appearing throughout Europe and N. America, as well as in Asia and the north of Africa. It is a freshwater species, remarkable for the great development of the comb-like 'teeth' at the margin of the bill. It is 19-20 inches long, generally grayish, finely mottled, with chestnut wing coverts. The underside of the wing pure white, while the speculum of the drake is blue.

Gadwall Duck

The Gadwall (Chaulelasmus streperus) is a widely distributed duck, appearing throughout Europe and N.…

The bill of the Gadwall Duck, showing the comb-like 'teeth' that they are known for.

Bill of Gadwall

The bill of the Gadwall Duck, showing the comb-like 'teeth' that they are known for.

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered localities in most parts of the world. Its specific name refers to the fact that it has long been a denizen of Bass Rock -- a famous craggy islet on the coast of England. This bird also nests on Bird Rock in the gulf of St. Lawrence, and other species exist in the tropics. It belongs to the same sub-order as the cormorant, and may be recognized by the fact that, as in the latter, all four toes are united by a web. 

Its bill is long, strong, and compressed to a point. In adult life, the plumage is white, save for the black primaries and a buff patch on the head or neck; the young are dusky, and do not acquire the white plumage until their sixth year. Their nests contain only one egg.

Gannet

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered…

The Common Guillemot (<i>Uria troile</i>) is a member of the auk family. It breeds on all rocky coasts of the North Atlantic. The bill is long, straight, and strong, the wings and tail short. In spring, the upper surface of the body is brownish black, the under white, save for the dark throat; in winter, the throat becomes white or mottled. All guillemots lay a single pear-shaped on the ledge of a sea-cliff. They make no nest whatever, and large colonies brood in company.

Common Guillemot

The Common Guillemot (Uria troile) is a member of the auk family. It breeds on all rocky coasts of the…

Chough, a European crow with a glossy black color, with bill, legs and feet a bright cherry red.

Chough

Chough, a European crow with a glossy black color, with bill, legs and feet a bright cherry red.

<i>Melanitta americana or &OElig;demia nigra</i> A large sea-duck of the genus <i>CEdemia</i>, belonging to the subfamily <i>Fuligulinaea</i>, having in the male the plumage black and a red gibbosity of the bill, as <i>&OElig;demia nigra</i> of Europe.
<p>In this illustration, the duck is swimming in a large body of water. There is a lighthouse in the background.

A Black Scoter Swimming

Melanitta americana or Œdemia nigra A large sea-duck of the genus CEdemia, belonging to the subfamily…

"The so-called green jackdaw of Asia, <i>Cissa sinensis</i>. The sirgang inhabits the southeastern Himalayan region, and thence through Burma to Tasserim, and has occasioned much literature." &mdash;Whitney, 1889
<p>The bird is perched on a branch with a few leaves.

Sirgang

"The so-called green jackdaw of Asia, Cissa sinensis. The sirgang inhabits the southeastern Himalayan…

<i>Padda oryzivora</i>. "...the rice bird of Java...about as large as the bobolink, of a bluish-gray color with pink bill and white ear-coverts; a well-known cage bird." &mdash;Whitney, 1889

Java Sparrow on a Branch

Padda oryzivora. "...the rice bird of Java...about as large as the bobolink, of a bluish-gray color…

<i>Tetrapturus albidus</i>. Also called a billfish or spearfish, "the dorsal fin is low or moderately developed, and the ventrals are represented only by spines. It inhabits American waters as far north as New England in summer, and is not seldom taken in fathoms deep. The spear-fish is related to the swordfish (though of another family), and has a similar beak or sword. It attains a length of six or eight feet. In the West Indies its Spanish name is <i>aguja</i>." &mdash;Whitney, 1889

White Marlin, a Sailfish

Tetrapturus albidus. Also called a billfish or spearfish, "the dorsal fin is low or moderately developed,…