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Right valve of a mollusk of the Chamid&aelig' genus.

Mollusk

Right valve of a mollusk of the Chamidæ' genus.

A conch shell.

Chank

A conch shell.

The underside of a turtle or tortoise shell.

Turtle Shell

The underside of a turtle or tortoise shell.

A chestnut, with prickly outer shell.

Chestnut

A chestnut, with prickly outer shell.

They differ from all other mollusks in having a bilaterally symmetrical covered with a number of seperate overlapping plates or valves, thus exhibiting the nearest approach to the vermiform or articulated type of structure.

Chitonidæ

They differ from all other mollusks in having a bilaterally symmetrical covered with a number of seperate…

"The <em>buccina</em> is curved for the convenience of the performer, with a very wide mouth, to diffuse and increase the sound." &mdash; Anthon, 1891

Curved buccina

"The buccina is curved for the convenience of the performer, with a very wide mouth, to diffuse…

"A copy of an ancient sculpture taken from Blanchini's work, it still retains the original form of the shell." &mdash; Anthon, 1891

Straight buccina

"A copy of an ancient sculpture taken from Blanchini's work, it still retains the original form of the…

Half an Oyster Shell.

Oyster

Half an Oyster Shell.

A genus of siphonate bivalves.

Circe

A genus of siphonate bivalves.

A tortoise having plastron hinged, so that the shell can be made to close upon entirely conceal the animal.

Box Tortoise

A tortoise having plastron hinged, so that the shell can be made to close upon entirely conceal the…

A case of paper, pasteboard, etc., containing a charge for a firearm.

Cartridge

A case of paper, pasteboard, etc., containing a charge for a firearm.

A type of shell.

Clymenia

A type of shell.

A family of irregular sea urchins, flattened into a discoidal or shield like shape, with a mouth central and furnished with a masticatory apparatus.

Clypeastrid

A family of irregular sea urchins, flattened into a discoidal or shield like shape, with a mouth central…

A common cockle shell.

Cockle

A common cockle shell.

A sea shell.

Columbella

A sea shell.

"Soft unsegmented bodies, bilaterally symmetrical, enveloped by a leathery mantle, which usually develops a hard shell-covering, or external skeleton; a symmetrical nervous system, consisting of several connected nerve bunches, or ganglia. Such is the snail." &mdash; Hinman, 1888

Snail

"Soft unsegmented bodies, bilaterally symmetrical, enveloped by a leathery mantle, which usually develops…

The cone shells are numerous and beautiful found in southern and tropical seas.

Cone Shell

The cone shells are numerous and beautiful found in southern and tropical seas.

A bivalve mollusk shell.

Clam Shell

A bivalve mollusk shell.

A bivalve mulluk shell.

Clam Shell

A bivalve mulluk shell.

A sharp barnacle, usually found in the ocean.

Barnacle

A sharp barnacle, usually found in the ocean.

"The Bagobos, who are found about the slopes of Mount Apo, wear ivory or shell earings as big round as a cup. There is a small button on the inside of the earring which goes through the lobe of the ear." &mdash;Carpenter, 1902

Bagobo

"The Bagobos, who are found about the slopes of Mount Apo, wear ivory or shell earings as big round…

A small yellowish white shell with a fine gloss, used as money by various people.

Money Cowry

A small yellowish white shell with a fine gloss, used as money by various people.

A tree of tropical America bearing a gourd like fruit. The hard shell of which is applied to many domestic uses and is often elaborately carved or painted.

Calabash Tree

A tree of tropical America bearing a gourd like fruit. The hard shell of which is applied to many domestic…

A wampum was made of pieces of shining shell, strung, like beads, on strips of deerskin. With some Indians white beads meant peace, and black ones war or danger. Several strings woven together formed a strip which meant peace, and black ones war or danger. Several strings woven together formed a strip which meant, "This belt preserves my word." Wampum often served the Indian for money. When one tribe wished to send a message to another, a belt of wampum had to accompany it, or the message would not be received.

Wampum

A wampum was made of pieces of shining shell, strung, like beads, on strips of deerskin. With some Indians…

Interior of the ear. There is external to the head a wide-mouthed tube, or ear-trumpet (a), for catching and concentrating the waves of sound. It is movable in many beings, so that they can direct it to the place from which the sound comes. The sound concentrated at the bottom of the ear-tube falls upon a membrane stretched across the channel, like the parchment of an ordinary drum, over the space called the <em>tympanum</em>, or <em>drum of the ear</em> (b), and causes the membrane to vibrate. That its motion may be free, the air contained within the drum has free communication with the external air by the open passage (f), called the <em>eustachian tube</em>, leading to the back of the mouth. A degree of deafness ensues when this tube is obstructed, as in a cold; and a crack, or sudden noise, with immediate return of natural hearing, is, generally experienced when, in the effort of sneezing or otherwise, the obstruction is removed. The vibrations of the membrane of the drum are conveyed further inwards, through the cavity of the drum, by a chain of four bones (not here represented on account of their minuteness), reaching from the centre of the membrane to the <em>oval door</em> or <em>window</em>, leading into the labyrinth (e). The labyrinth, or complex inner compartment of the ear, over which the nerve of hearing is spread as a lining, is full of watery fluid; and, therefore, by the law of fluid pressure, when the force of the moving membrane of the drum, acting through the chain of bones, is made to compress the water, the pressure is felt instantly over the whole cavity. The labyrinth consists of the <em>vestibule</em> (e), the three <em>semicircular canals</em> (c), imbedded in the hard bone, and a winding cavity, called the <em>cochlea</em> (d), like that of a snail-shell, in which fibres, stretched across like harp-strings, constitute the <em>lyra</em>.

Ear

Interior of the ear. There is external to the head a wide-mouthed tube, or ear-trumpet (a), for catching…

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power and perpetual life. It has furnished more different art motives than any other object and is almost omnipresent in Persian prayer rugs. The palm signifies a blessing or benediction, the weeping willow stands for death, and the cypress, while being an emblem of mourning, in its perennial freshness and the durability of its wood, is also a very practical symbol of the life to come. It is an Oriental custom to plant cypress trees on the graves of the dead, to place its twigs in the coffins of the dead, and to use its branches to indicate the houses of mourning. In India the cocoanut palm is considered "the tree of desire" or one that fulfils all desires. Its stem serves as a pillar or beam, as a water conduit and as fuel; its leaves supply mats for roofing the houses; its kernel supplies oil; its shell makes water bowls, and the oil of the shell is used as an external application in certain skin affections, etc. It is all useful and supplies all the primitive wants and therefore was much cultivated by the Rishis (Saints) of old, who called it "kalpa taru," literally the tree that supplies all desires. Its presence therefore is auspicious.

Tree Design

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power and perpetual life. It has furnished more different art motives than any other object and is almost omnipresent in Persian prayer rugs. The palm signifies a blessing or benediction, the weeping willow stands for death, and the cypress, while being an emblem of mourning, in its perennial freshness and the durability of its wood, is also a very practical symbol of the life to come. It is an Oriental custom to plant cypress trees on the graves of the dead, to place its twigs in the coffins of the dead, and to use its branches to indicate the houses of mourning. In India the cocoanut palm is considered "the tree of desire" or one that fulfils all desires. Its stem serves as a pillar or beam, as a water conduit and as fuel; its leaves supply mats for roofing the houses; its kernel supplies oil; its shell makes water bowls, and the oil of the shell is used as an external application in certain skin affections, etc. It is all useful and supplies all the primitive wants and therefore was much cultivated by the Rishis (Saints) of old, who called it "kalpa taru," literally the tree that supplies all desires. Its presence therefore is auspicious.

Tree Design

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power and perpetual life. It has furnished more different art motives than any other object and is almost omnipresent in Persian prayer rugs. The palm signifies a blessing or benediction, the weeping willow stands for death, and the cypress, while being an emblem of mourning, in its perennial freshness and the durability of its wood, is also a very practical symbol of the life to come. It is an Oriental custom to plant cypress trees on the graves of the dead, to place its twigs in the coffins of the dead, and to use its branches to indicate the houses of mourning. In India the cocoanut palm is considered "the tree of desire" or one that fulfils all desires. Its stem serves as a pillar or beam, as a water conduit and as fuel; its leaves supply mats for roofing the houses; its kernel supplies oil; its shell makes water bowls, and the oil of the shell is used as an external application in certain skin affections, etc. It is all useful and supplies all the primitive wants and therefore was much cultivated by the Rishis (Saints) of old, who called it "kalpa taru," literally the tree that supplies all desires. Its presence therefore is auspicious.

Tree Design

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power and perpetual life. It has furnished more different art motives than any other object and is almost omnipresent in Persian prayer rugs. The palm signifies a blessing or benediction, the weeping willow stands for death, and the cypress, while being an emblem of mourning, in its perennial freshness and the durability of its wood, is also a very practical symbol of the life to come. It is an Oriental custom to plant cypress trees on the graves of the dead, to place its twigs in the coffins of the dead, and to use its branches to indicate the houses of mourning. In India the cocoanut palm is considered "the tree of desire" or one that fulfils all desires. Its stem serves as a pillar or beam, as a water conduit and as fuel; its leaves supply mats for roofing the houses; its kernel supplies oil; its shell makes water bowls, and the oil of the shell is used as an external application in certain skin affections, etc. It is all useful and supplies all the primitive wants and therefore was much cultivated by the Rishis (Saints) of old, who called it "kalpa taru," literally the tree that supplies all desires. Its presence therefore is auspicious.

Tree Design

Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…

An edible bivavle mollusk, closely allied to the mussels, and which forms an important article of commerce. Oysters are found near the shores of salt and brackish water, where they are moored by the left shell to stones or other hard substances. They feed principally on microscopic beings an particles of organic matter which they take in from the currents of water by the mouth at the hinge end of the shell.

Oyster

An edible bivavle mollusk, closely allied to the mussels, and which forms an important article of commerce.…

The name of several species of shell-fish, so called from their round, ribbed shell with scalloped edges. They are classes as bivalves, having shells connected at the upper side with a hinge.

Scallop

The name of several species of shell-fish, so called from their round, ribbed shell with scalloped edges.…

A gasteropodous mollusk, differing from the slug in having a large, spiral shell. The species are very numerous, varing somewhat in habits and size, and inhabiting practically all regions where fresh water is obtainable.

Snail

A gasteropodous mollusk, differing from the slug in having a large, spiral shell. The species are very…

In Greek mythology, the only son of Poseidon, who is described as one of the minor sea gods. He was represented as an attendant of his father, usually mounted on a sea monster, and holding in his hand a conch-shell trumpet.

Triton

In Greek mythology, the only son of Poseidon, who is described as one of the minor sea gods. He was…

A cup and saucer limpet.

Limpet

A cup and saucer limpet.

This diagram shows some stages in the life history of the tapeworm. A, Cysticercus or Bladderworm stage, before the "head" protrudes from the bladder; B, same, later stage; C, Strobila, or chain of proglottides, many being omitted; D, embryo such as fill the uterus of the mature proglottides. It is protected by a shell. b, bladder; ex., excretory canals; g, genital pore; h, head or scolex provided with hooks and suckers (s); u, uterus in a mature posterior proglottis; z, one of budding or segment formation. The numerals show the approximate number of segments, reckoning from the front.

Tapeworm

This diagram shows some stages in the life history of the tapeworm. A, Cysticercus or Bladderworm stage,…

Larva of lobster removed from egg shell.

Lobster

Larva of lobster removed from egg shell.

A snail shell.

Shell

A snail shell.

A gastropod shell.

Shell

A gastropod shell.

A type of seashell.

Boat Shell

A type of seashell.

A fancy shell.

Cypria

A fancy shell.

This illustration shows the calcareous shell Globigerina rubra. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Globigerina Rubra

This illustration shows the calcareous shell Globigerina rubra. These shells are mostly very small,…

This illustration shows the calcareous shell Textilaria globulosa. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Textilaria Globulosa

This illustration shows the calcareous shell Textilaria globulosa. These shells are mostly very small,…

This illustration shows the calcareous shell Rotalia globulosa. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Rotalia Globulosa

This illustration shows the calcareous shell Rotalia globulosa. These shells are mostly very small,…

This illustration shows the calcareous shell Grammostomum phyllodes. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Grammostomum Phyllodes

This illustration shows the calcareous shell Grammostomum phyllodes. These shells are mostly very small,…

This illustration shows the calcareous shell Frondicularia Annularis. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Frondicularia Annularis

This illustration shows the calcareous shell Frondicularia Annularis. These shells are mostly very small,…

This illustration shows the calcareous shell Triloculina Josephina. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Triloculina Josephina

This illustration shows the calcareous shell Triloculina Josephina. These shells are mostly very small,…

This illustration shows the calcareous shell Nodosaria vulgaris. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Nodosaria Vulgaris

This illustration shows the calcareous shell Nodosaria vulgaris. These shells are mostly very small,…

This illustration shows the calcareous shell Lituola nautiloides. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Lituola Nautiloides

This illustration shows the calcareous shell Lituola nautiloides. These shells are mostly very small,…

This illustration shows the calcareous shell Flabellina rugosa. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Flabellina rugosa

This illustration shows the calcareous shell Flabellina rugosa. These shells are mostly very small,…

This illustration shows the calcareous shell Chrysalidina gradata. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Chrysalidina Gradata

This illustration shows the calcareous shell Chrysalidina gradata. These shells are mostly very small,…

This illustration shows the calcareous shell Cuneolina pavonia. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Cuneolina Pavonia

This illustration shows the calcareous shell Cuneolina pavonia. These shells are mostly very small,…

This illustration shows the calcareous shell Nummulites nummularia. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Nummulites Nummularia

This illustration shows the calcareous shell Nummulites nummularia. These shells are mostly very small,…

This illustration shows the calcareous shell Fusulina cylindrica. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Fusulina Cylindrica

This illustration shows the calcareous shell Fusulina cylindrica. These shells are mostly very small,…

This illustration shows the calcareous shell Fusulina cylindrica. These shells are mostly very small, and yet through their abundance they have been very important in limestone-making.

Fusulina Cylindrica

This illustration shows the calcareous shell Fusulina cylindrica. These shells are mostly very small,…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

The Lingula have tongue-shaped shells with a long fleshy stalk, or pedicle, with which the animal burrows into sandy or muddy sediments.

Lingula

The Lingula have tongue-shaped shells with a long fleshy stalk, or pedicle, with which the animal burrows…

A mussel shell of the stone&mdash;boring genus Lithodomus.

Date Shell

A mussel shell of the stone—boring genus Lithodomus.

Right valve of a clam.

Clam

Right valve of a clam.