This Assyrian amphora is a vase made out of clay with a rope handle.

Assyrian Amphora

This Assyrian amphora is a vase made out of clay with a rope handle.

This clay amphora is painted in polychrome (multicolors). It has an Alexandrian style band-shaped handles.

Clay Amphora

This clay amphora is painted in polychrome (multicolors). It has an Alexandrian style band-shaped handles.

This clay amphora is painted in polychrome (multicolors). It has an Alexandrian style band-shaped handles.

Clay Amphora

This clay amphora is painted in polychrome (multicolors). It has an Alexandrian style band-shaped handles.

This Persian bottle is made out of clay. It has an elongated neck with a rounded bottom and ring foot.

Persian Bottle

This Persian bottle is made out of clay. It has an elongated neck with a rounded bottom and ring foot.

A pair of hands forming a long section of rolled clay into a container.

Modeling a clay container

A pair of hands forming a long section of rolled clay into a container.

A pair of hands smoothing a clay container formed by curling large sections of rolled clay together.

Smoothing a clay container

A pair of hands smoothing a clay container formed by curling large sections of rolled clay together.

A vase, ordinarily covered and without handles and usually has a narrowed neck above a footed pedestal.

Clay Urn

A vase, ordinarily covered and without handles and usually has a narrowed neck above a footed pedestal.

Henry Clay, the famous American statesman and orator. He ran for president unsuccessfully several times. Speaker of the House of Representatives, US Secretary of State, Senator from Kentucky.

Henry Clay

Henry Clay, the famous American statesman and orator. He ran for president unsuccessfully several times.…

A portrait of Henry Clay. He was the American statesman and orator. He ran for president several times but was unsuccessful. Speaker of the House of Representatives, Secretary of State, Representative, , US Senator from Kentucky.

Henry Clay

A portrait of Henry Clay. He was the American statesman and orator. He ran for president several times…

Clay-iron stone concretion, Connecticut valley.

Clay-iron Stone Concretion

Clay-iron stone concretion, Connecticut valley.

A melting pot used to heat things to extremely night temperatures.

Crucible

A melting pot used to heat things to extremely night temperatures.

A melting pot used to heat things to extremely night temperatures.

Crucible

A melting pot used to heat things to extremely night temperatures.

Section of a small delta in a lake, showing the fore-sets of pebbles and sand, the bottom-sets of clay, and the top-sets of coarse sand and pebbles.

Delta

Section of a small delta in a lake, showing the fore-sets of pebbles and sand, the bottom-sets of clay,…

An image of the Egyptian brick-making process. Bricks were usually made by foreigners. Exodus 5 records the story of the Israelites making bricks in Egypt.

Egyptian Brick-Making

An image of the Egyptian brick-making process. Bricks were usually made by foreigners. Exodus 5 records…

"Suppose a to be a gravel hill, and b a strata of clay or rock, impervious to water. The fluid percolating through the gravel would reach the impervious strata, along which it would run until it found an outlet at c at the foot of the hill, where a spring would be formed." — Wells, 1857

Gravel Hill

"Suppose a to be a gravel hill, and b a strata of clay or rock, impervious to water. The fluid percolating…

This Graeco-Italic hand-hydria is made out of clay and is unpainted. It is smaller and a slenderer hydria intended to be carried by hand and not the head.

Graeco-Italic Hand-Hydria

This Graeco-Italic hand-hydria is made out of clay and is unpainted. It is smaller and a slenderer hydria…

This Graeco-Italic hand-hydria is made out of clay and is unpainted. It is smaller and a slenderer hydria intended to be carried by hand and not the head.

Graeco-Italic Hand-Hydria

This Graeco-Italic hand-hydria is made out of clay and is unpainted. It is smaller and a slenderer hydria…

A pair of hands rolling clay into a cylindrical shape.

hands molding clay

A pair of hands rolling clay into a cylindrical shape.

The Egyptian phiale with cover is a slender vessel without handles. It has an elongated body with a long narrow neck made out of clay or glass.

Egyptian Phiale

The Egyptian phiale with cover is a slender vessel without handles. It has an elongated body with a…

Picture represents clay retorts used in the distillation of phosphorus at high temperatures, with phosphorus, hydrogen, and carbon monoxide being produced.

Phosphorus Distillation

Picture represents clay retorts used in the distillation of phosphorus at high temperatures, with phosphorus,…

An illustration of two forms of Italian potter's wheels.

Pottery Wheels

An illustration of two forms of Italian potter's wheels.

This Antique small vessel has engraved ornamentation and is painted in black clay.

Antique Small Vessel

This Antique small vessel has engraved ornamentation and is painted in black clay.

An experiment testing the absorbancy of different types of soils.

Analyzing Soil

An experiment testing the absorbancy of different types of soils.

A patch of soil and grass which has cracked after having been worked too fine in the fall.

Cracks in the soil

A patch of soil and grass which has cracked after having been worked too fine in the fall.

The Chinese Garden Seat Stool introduced from China. This stool was made of burned and glazed clay.

Chinese Garden Seat Stool

The Chinese Garden Seat Stool introduced from China. This stool was made of burned and glazed clay.

This vase is of Indian origin and is made out of metal and clay. Typically used for holding water, it has a very dark color and is inlaid with pieces of silver.

Vase

This vase is of Indian origin and is made out of metal and clay. Typically used for holding water, it…

A stoppered vial, two-thirds filled with a darkish granular substance.

Two-thirds full vial

A stoppered vial, two-thirds filled with a darkish granular substance.

"Whip-grafting or tongue-grafting is the most usual mode of performing the operation. The stock is headed off by an oblique transverse cut as shown at a, a slice is then pared off the side as at b, and on the face of this a tongue or notch is made, the cut being in a downward direction; the scion c is pared off in a similar way by a single clean sharp cut, and this is notched or tongued in the opposite direction as the figure indicates, the two are then fitted together as shown at d, so that the inner bark of each may come in contact at least on one side, and then tied round with damp soft bast as at c; next some grafting clay is taken on the forefinger and pushed down on each side so as to fill out the space between the top of the stock and the graft, and a portion is also rubbed over the ligatures on the side where the graft is placed." — Encyclopedia Britannica, 1893

Whip-Grafting

"Whip-grafting or tongue-grafting is the most usual mode of performing the operation. The stock is headed…