The brook trout, Salvelinus fontinalis, (sometimes called the eastern brook trout, Adirondack coaster lake trout) is a species of fish in the salmon family of order Salmoniformes. The brook trout is native to small streams, creeks, lakes, and spring ponds. Some brook trout are anadromous. It is native to a wide area of eastern North America but increasingly confined to higher elevations southward in the Appalachian Mountains to northern Georgia, Canada from the Hudson Bay basin east, the Great Lakes–Saint Lawrence system, and the upper Mississippi River drainage as far west as eastern Iowa.

Brook Trout

The brook trout, Salvelinus fontinalis, (sometimes called the eastern brook trout, Adirondack coaster…

Sheatfishes or freshwater catfishes are a family (Siluridae) of catfishes (order Siluriformes). There are about 100 living species of silurids.

Sheatfish

Sheatfishes or freshwater catfishes are a family (Siluridae) of catfishes (order Siluriformes). There…

Torpedo is a group of rays, commonly called electric rays or torpedoes. It is the only genus in the family Torpedinidae, in the order Torpediniformes. They are slow-moving bottom-dwellers capable of generating a electricity as a defense and feeding mechanism. There are 15-22 extant species.

Torpedo

Torpedo is a group of rays, commonly called electric rays or torpedoes. It is the only genus in the…

Anglerfish are the members of the order Lophiiformes. They are bony fish named for their characteristic mode of predation, wherein a fleshy growth from the fish's head (the esca) acts as a lure; this is considered analogous to angling. Some anglerfish are pelagic (live in the open water), others are benthic (bottom-dwelling). Some live in the deep sea (e.g. Ceratiidae) and others on the continental shelf (e.g. the frogfishes Antennariidae and the monkfish/goosefish Lophiidae). They occur worldwide. Pelagic forms are most laterally (sideways) compressed whereas the benthic forms are often extremely dorsoventrally compressed (depressed) often with large upward pointing mouths.

Anglerfish

Anglerfish are the members of the order Lophiiformes. They are bony fish named for their characteristic…

An illustration of a common flea. Once the flea reaches adulthood its primary goal is to find blood - adult fleas must feed on blood in order to reproduce. Adult fleas only have around a week to find food once they emerge, though they can survive two months to a year between meals. A flea population is unevenly distributed, with 50 percent eggs, 35 percent larvae, 10 percent pupae and 5 percent adults. Their total life cycle can take as little as two weeks, but may be lengthened to many months if conditions are unfavorable. Female fleas can lay 500 or more eggs over their life, allowing for phenomenal growth rates.

Flea

An illustration of a common flea. Once the flea reaches adulthood its primary goal is to find blood…

An illustration of the Order of the Garter Star. The Most Noble Order of the Garter is an order of chivalry, or knighthood, originating in medieval England, and presently bestowed on recipients in any of the Commonwealth realms; it is the pinnacle of the honors system in the United Kingdom. Membership in the order is limited to the sovereign, the Prince of Wales, and no more than twenty-four members, or Companions; the order also comprises Supernumerary knights and ladies (e.g., members of the British Royal Family and foreign monarchs).

Order of the Garter Star

An illustration of the Order of the Garter Star. The Most Noble Order of the Garter is an order of chivalry,…

An illustration of the Order of the Garder's collar and George. The collar is an accessory worn around the neck, over the mantle. Like the mantle, it was introduced in the 15th and 16th centuries. Made of pure gold, it weighs 30 troy ounces (0.933 kg). The collar is composed of gold knots alternating with enamelled medallions showing a rose encircled by the Garter. During King Henry VII's reign, each garter surrounded two roses—one red and one white—but he changed the design such that each garter encircled only one red rose. The George, which is worn suspended from the collar, is a colorfully enameled three-dimensional figure of St George the Martyr on horseback slaying a dragon.

Order of the Garter's Collar and George

An illustration of the Order of the Garder's collar and George. The collar is an accessory worn around…

An illustration of the Order of the Garder's garter. The Garter is worn on ceremonial occasions around the left calf by knights and around the left arm by ladies, and is depicted on several insignia. The Garter is a buckled dark-blue (originally light-blue) velvet strap, and bears the motto in gold letters. The garters of Stranger Knights and Ladies were once set with several jewels.

Order of the Garter's Garter

An illustration of the Order of the Garder's garter. The Garter is worn on ceremonial occasions around…

An illustration of an Ichthyosaurus skull. Ichthyosaurus is an extinct genus of ichthyosaur from the Early Jurassic (Hettangian - Sinemurian) of Europe (Belgium, England and Germany). It is among the best known ichthyosaur genera, with the Order Ichthyosauria being named after it. Ichthyosaurus was the first complete fossil to be discovered in the early 1800's by Mary Anning in England.

Ichthyosaurus Skull

An illustration of an Ichthyosaurus skull. Ichthyosaurus is an extinct genus of ichthyosaur from the…

An illustration of an Ichthyosaurus skeleton. Ichthyosaurus is an extinct genus of ichthyosaur from the Early Jurassic (Hettangian - Sinemurian) of Europe (Belgium, England and Germany). It is among the best known ichthyosaur genera, with the Order Ichthyosauria being named after it. Ichthyosaurus was the first complete fossil to be discovered in the early 1800's by Mary Anning in England.

Archaeopteryx Skeleton

An illustration of an Ichthyosaurus skeleton. Ichthyosaurus is an extinct genus of ichthyosaur from…

Grasshoppers are insects of the suborder Caelifera in the order Orthoptera. To distinguish them from bush crickets or katydids, they are sometimes referred to as short-horned grasshoppers. Species that change color and behaviour at high population densities are called locusts.

Female Grasshopper

Grasshoppers are insects of the suborder Caelifera in the order Orthoptera. To distinguish them from…

A, crepidoma or stylobate; B, column; C, architrave; D, tænia; E, frieze; F, horizontal cornice; G, raking cornice; H, tympanum of pediment; K, metope.In this and other cuts of this order, only the upper and lower parts of the shaft are shown, the intervening and greater part of the shaft being omitted, to save space.

Greek Doric Order

A, crepidoma or stylobate; B, column; C, architrave; D, tænia; E, frieze; F, horizontal cornice;…

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being practiced in mainland Greece in the 5th century BC. The first of the great Ionic temples was the Temple of Hera on Samos, built about 570 BC–560 BC by the architect Rhoikos. It stood for only a decade before it was leveled by an earthquake. It was in the great sanctuary of the goddess: it could scarcely have been in a more prominent location for its brief lifetime. A longer-lasting 6th century Ionic temple was the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.

Greek Ionic Order

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being…

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being practiced in mainland Greece in the 5th century BC. The first of the great Ionic temples was the Temple of Hera on Samos, built about 570 BC–560 BC by the architect Rhoikos. It stood for only a decade before it was leveled by an earthquake. It was in the great sanctuary of the goddess: it could scarcely have been in a more prominent location for its brief lifetime. A longer-lasting 6th century Ionic temple was the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.

Greek Ionic Order (Side View)

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being…

The Corinthian order is one of the Classical orders of Greek and Roman architecture, characterized by a slender fluted column and an ornate capital decorated with acanthus leaves and scrolls. Although of Greek origin, the Corinthian order was seldom used in Greek architecture.

Greek Corinthian Order

The Corinthian order is one of the Classical orders of Greek and Roman architecture, characterized by…

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being practiced in mainland Greece in the 5th century BC. The first of the great Ionic temples was the Temple of Hera on Samos, built about 570 BC-560 BC by the architect Rhoikos. It stood for only a decade before it was leveled by an earthquake. It was in the great sanctuary of the goddess: it could scarcely have been in a more prominent location for its brief lifetime. A longer-lasting 6th century Ionic temple was the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.

Roman Ionic Order

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being…

Fort Schlosser was a fortification built in Western New York in the USA around 1760 by British Colonial forces, in order to guard the upper entrance to the portage around Niagara Falls.

Remains at Fort Schlosser

Fort Schlosser was a fortification built in Western New York in the USA around 1760 by British Colonial…

Woodlice are crustaceans with a rigid, segmented, long exoskeleton and fourteen jointed limbs. They form the suborder Oniscidea within the order Isopoda, with over 3,000 known species.

Woodlouse

Woodlice are crustaceans with a rigid, segmented, long exoskeleton and fourteen jointed limbs. They…

The forum was built on the order of Emperor Trajan with the spoils of war from the conquest of Dacia, which ended in 106. The Forum was built from a vast stoa-lined piazza measuring 660 by 390 feet (200 × 120 m) with exedrae on two sides. The Basilica Ulpia was an ancient Roman civic building located in the Forum of Trajan. It was named after Roman emperor Trajan whose full name was Marcus Ulpius Traianus.

Forum and Basilica of Trajan

The forum was built on the order of Emperor Trajan with the spoils of war from the conquest of Dacia,…

The Fatih Mosque (Mosque of Mehmet II, Mosque of Mehmet the Conqueror) was constructed by order of Fatih Sultan Mehmed the Conqueror from 1463-1470, on the site of the former Byzantine Church of the Holy Apostles in Istanbul, whose ruins served as a quarry to supply building materials for the new mosque. The architect was Atik Sinan, about whom little is known.

Fatih Mosque (Plan)

The Fatih Mosque (Mosque of Mehmet II, Mosque of Mehmet the Conqueror) was constructed by order of Fatih…

The Elisabeth Church in Marburg was built by the Order of the Teutonic Knights in honor of Elisabeth of Hungary. Her tomb made the church an important pilgrimage destination in the late Middle Ages. The building is now a Protestant church.

Section of Elisabeth Church, Marburg, Germany

The Elisabeth Church in Marburg was built by the Order of the Teutonic Knights in honor of Elisabeth…

An illustration of various fractional distillation devices. fractional distillation must be used in order to separate the components well by repeated vaporization-condensation cycles within a packed fractionating column. This separation, by successive distillations, is also referred to as rectification.

Fractional Distillation

An illustration of various fractional distillation devices. fractional distillation must be used in…

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle of Fort Sumter during the American Civil War.

Fort Sumter Medal (Front)

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle…

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle of Fort Sumter during the American Civil War.

Fort Sumter Medal (Back)

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle…

The Alderfly (Sialis infumata) is an insect in the Megaloptera order of alderflies, dobsonflies, and fishflies.

Alderfly

The Alderfly (Sialis infumata) is an insect in the Megaloptera order of alderflies, dobsonflies, and…

Rusts are fungi in the Uredinales order that are plant parasites and resemble rust."Ravenelia. a, stem of Cassia nictitans with teleutospores on the stem and uredospores on the leaves; b, stem and teleutospores enlarged; c, section showing the teleutospores."

Rust Fungus

Rusts are fungi in the Uredinales order that are plant parasites and resemble rust. "Ravenelia. a, stem…

The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced tower on which revolves a large, horizontal, double cantilever; the forward part of this cantilever or jib carries the lifting trolley, the jib is extended backwards in order to form a support for the machinery and counter-balancing weight. In addition to the motions of lifting and revolving, there is provided a so-called "racking" motion, by which the lifting trolley, with the load suspended, can be moved in and out along the jib without altering the level of the load. Such horizontal movement of the load is a marked feature of later crane design. These cranes are generally constructed in large sizes, up to 350 tons.

Hammerhead Crane

The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced tower…

The Redlip Blenny (Ophioblennius atlanticus) is one of three species of blennies in the Perciformes order of perch-like fish.

Redlip Blenny

The Redlip Blenny (Ophioblennius atlanticus) is one of three species of blennies in the Perciformes…

Other capitals are more compact, where from the lower part, which is in the shape of a globular vessel, rises a slender cup, supporting a lofty member with double volutes or scrolls on the four sides, which correspond with those of the Grecian Ionic capitals, but which are introduced not horizontally but perpendicularly. The base consists of fillets and a leaf-covered torus resting on a circular path.

Volute of the Persian Column

Other capitals are more compact, where from the lower part, which is in the shape of a globular vessel,…

A cicada is an insect of the order Hemiptera, suborder Auchenorrhyncha, in the superfamily Cicadoidea, with large eyes wide apart on the head and usually transparent, well-veined wings.

Head of Cicada

A cicada is an insect of the order Hemiptera, suborder Auchenorrhyncha, in the superfamily Cicadoidea,…

The Doric columns, which are short, powerful, and closely ranged together, in order to support the weight of the massive entablature, consist of the shaft and the capital, and rest immediately without base on the upper step, which serves as the ground-floor, or stereobate of the temple.

Doric Column from the Temple of Neptune at Paestum

The Doric columns, which are short, powerful, and closely ranged together, in order to support the weight…

The frieze of the Doric order is not taken up with sculpture in uninterrupted succession, but it occurs in groups at regular intervals, separated by features called triglyphs (a). The spaces formed between the triglyphs are called metopes (b).

Doric Order Frieze in the Parthenon at Athens

The frieze of the Doric order is not taken up with sculpture in uninterrupted succession, but it occurs…

The Ionic order was indebted for its earlier development to western Asiatic influence, notably to that of Persepolis; but its maturer beauties are to be attributed to a Doric source. Its main features are the same as in the Doric style; their forms, however, are different. The Ionic order has more mouldings, its forms are richer and more elegant, and, as a style, it is lighter and more graceful than the Doric.

Ionic Pillar in the Erechtheum at Athens

The Ionic order was indebted for its earlier development to western Asiatic influence, notably to that…

The Ionic column has a less diminished shaft and a smaller parabolic curve than the Doric. It is, like the Doric, channeled; the flutings, which are 24 in number, are separated by annulets, and are therefore narrower, but at the same time deeper, than the Doric, and are terminated at the top and bottom by the final curvature.

Fluting Plan of the Ionic and Corinthian Column

The Ionic column has a less diminished shaft and a smaller parabolic curve than the Doric. It is, like…

The so-called Attic base is the form which most frequently occurs; and consists of two tori separated by a cavetto, the whole having a plinth as basis; the upper torus being less high and projecting than the lower.

Attic Base in the Temple of Minerva Polias

The so-called Attic base is the form which most frequently occurs; and consists of two tori separated…

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally, by an ovolo with a pearl-beading beneath. Instead of the Doric abacus there occurs a cushion-like band in its place, whose ends wound in a spiral shape and coiled with elastic force, when viewed either from in front or behind, formed volutes, which on both sides considerably exceed the diameter of the column, and also surpass the architrave in breadth.

Ionic Capital from the Temple of Minerva Polias at Priene

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally,…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Side View of the Ionic Capital from the Temple of Minerva Polias at Priene

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Section of a Volute of an Ionic Capital

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Top View of the Ionic Capital from the Temple of Minerva Polias at Priene

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally, by an ovolo with a pearl-beading beneath. Instead of the Doric abacus there occurs a cushion-like band in its place, whose ends wound in a spiral shape and coiled with elastic force, when viewed either from in front or behind, formed volutes, which on both sides considerably exceed the diameter of the column, and also surpass the architrave in breadth. This specific one differs from the normal shape.

Ionic Capital from the Temple of Apollo at Basse

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally,…

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated to be introduced between pillars and antæ, and not in a disconnected peristyle with with angle columns. In angle columns, however, the volutes are sometimes constructed in such a way that they meet at both sides diagonally.

Ionic Angle Column from the Temple of Minerva Polias at Athens, Front

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated…

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated to be introduced between pillars and antæ, and not in a disconnected peristyle with with angle columns. In angle columns, however, the volutes are sometimes constructed in such a way that they meet at both sides diagonally.

Ionic Angle Column from the Temple of Minerva Polias at Athens, Side

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated…

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings; the base, on the other hand, is the same as in the columns, and is continued round the walls as a plinth.

Plan of Ionic Antæ Capital from the Temple of Minerva Polias at Athens

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings;…

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings; the base, on the other hand, is the same as in the columns, and is continued round the walls as a plinth.

Ionic Antæ Capital from the Temple of Minerva Polias at Athens

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings;…

The entablature resting on the columns has three parts: a plain architrave divided into two, or more generally three, bands, with a frieze resting on it that may be richly sculptural, and a cornice built up with dentils, with a corona and cyma molding to support the projecting roof.

Ionic Cornice from the Temple of Minerva Polias at Priene

The entablature resting on the columns has three parts: a plain architrave divided into two, or more…

The structural tendency which prevails in the capitals of all orders to change from the circular form of the shaft into the square is modified in the Ionic by the voluted nature of the capital, and in the Corinthian by representations of vegetable life.

Corinthian Capital

The structural tendency which prevails in the capitals of all orders to change from the circular form…

The Corinthian cornice is only distinguished from the Ionic by its mutules and modillions, which take the place of the dentels in the latter style. They are fewer in number, but richer and more ornamented, as well as more projecting.

Corinthian Cornice

The Corinthian cornice is only distinguished from the Ionic by its mutules and modillions, which take…

The acanthus is one of the most common ornaments used to depict foliage.

Acanthus Leaf, Front and Side Views

The acanthus is one of the most common ornaments used to depict foliage.

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae. It is supposed to represent the piece of timber through which the wooden pegs were driven in order to hold the rafter in position, and it follows the sloping rake of the roof. In the Roman Doric order the mutule was horizontal, with sometimes a crowning fillet, so that it virtually fulfilled the purpose of the modillion in the Corinthian cornice.

Mutule, Side View

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae.…

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae. It is supposed to represent the piece of timber through which the wooden pegs were driven in order to hold the rafter in position, and it follows the sloping rake of the roof. In the Roman Doric order the mutule was horizontal, with sometimes a crowning fillet, so that it virtually fulfilled the purpose of the modillion in the Corinthian cornice.

Mutule, Front View

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae.…

Simple styles, such as the Doric, which accorded so intimately with the whole disposition of the Grecian temple, and the Ionic, were but rarely used; whilst, on the other hand, the Corinthian order was extremely prevalent, for it corresponded to the desire for splendor and magnificence. This order was employed, not, as among the Greeks, in small dimensions, but on the largest scale.

Corinthian Entablature from the Nerva at Rome

Simple styles, such as the Doric, which accorded so intimately with the whole disposition of the Grecian…

An illustration of a lotus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Lotus Capital

An illustration of a lotus decorated capital. In several traditions of architecture including Classical…

An illustration of a papyrus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Papyrus Capital

An illustration of a papyrus decorated capital. In several traditions of architecture including Classical…

An illustration of a lotus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Lotus Capital

An illustration of a lotus decorated capital. In several traditions of architecture including Classical…

An illustration of a Persian capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Persian Capital

An illustration of a Persian capital. In several traditions of architecture including Classical architecture,…

An illustration of an early Greek capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Early Greek Capital

An illustration of an early Greek capital. In several traditions of architecture including Classical…

An illustration of a Corithian capital from the Tholos of Epidaurus. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Corinthian Capital

An illustration of a Corithian capital from the Tholos of Epidaurus. In several traditions of architecture…

An illustration of a Byzantine capital from the central portal of St. Mark's Venice. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the central portal of St. Mark's Venice. In several traditions…

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions…

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions…