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Rectangular banner, made of small ornate decorations and larger floral cornerpieces.

Rectangular Banner

Rectangular banner, made of small ornate decorations and larger floral cornerpieces.

A piano having the strings mounted vertically in a rectangular case with the keyboard at a right angle to the case.

Upright Piano

A piano having the strings mounted vertically in a rectangular case with the keyboard at a right angle…

Rectangular design with leaves.

Leaf design

Rectangular design with leaves.

In several Egyptian temples there are square or rectangular piers fronted with colossal sculptured figures of Osirid holding a scourge and a "Nile key" or "key of life."

Osirid Pier

In several Egyptian temples there are square or rectangular piers fronted with colossal sculptured figures…

"Clark's House, Lexington. This building was standing when I visited Lexington in 1848. It was built by Thomas Hancock, Esq., of Boston, as a parsonage for his father, the Reverend John Hancock, of Lexington, about 130 years ago. Mr. Hancock was a minister at Lexington fifty-two years, and was succeeded by the Reverend Jonas Clark, the occupant of the house at the time of the skirmish at Lexington. Mr. Clark lived in the house fifty-two years. The room in which the two patriots, Samuel Adams and John Hancock, were sleeping on the night before the skirmish at Lexington, is retained in its original condition. The wainscoting is of Carolina pine, and the sides of the room are covered with a heavy paper, with dark figures, pasted upon the boards in rectangular pieces about fourteen inches square. In an adjoining room is one of those ancient fire-places, ornamented with pictorial tiles, so rarely found in New England."—Lossing, 1851

Clark's House

"Clark's House, Lexington. This building was standing when I visited Lexington in 1848. It was built…

"In <em>optics</em>, a deviation in the rays of light when unequally refracted by a lens or reflected by a mirror, so that they do not converge and meet in a point or focus, but separate, forming an indistinct image of the object, or an indistinct image with prismatically colored edges."-Wright, 1902

Aberration

"In optics, a deviation in the rays of light when unequally refracted by a lens or reflected…

"The earliest account of lake dwellings is to be found in Herodotus, who describes a Thracian tribe living, in 520 B.C., in a small mountain lake of what is now Rumelia. The custom of constructing these habitations has come down to the present day. The fisherman of Lake Prasias, near Salonica, still inhabit wooden cottages built over the water, as the Thracian tribes did, and in the East Indies the practice of building lake settlements is very common. The lake dwellings proper of Switzerland came to light during the winter months of 1853-1854, when the water of the lakes fell much below its ordinary level. Dr. Keller, who first described these lake dwellings, says that the main platform was made of round timbers, rarely of split boards, covered with a bed of mud; the walls and sides were in great measure of interlaced branches, the interstices filled with moss, and daubed with clay. In his opinion, all the evidence goes to show they were rectangular in shape. It is probable that the huts were thatched, and the parts used as dormitories strewn with straw or hay."&mdash;(Charles Leonard-Stuart, 1911)

Lake Dwellings

"The earliest account of lake dwellings is to be found in Herodotus, who describes a Thracian tribe…

"A low column, sometimes round, but more frequently rectangular. Cippi were used for various purposes; the decrees of the senate were sometimes inscribed upon them; and with distances engraved upon them, they also served as mile-stones. They were however, more frequently employed as sepulchral monuments. It was also usual to place at one corner of the burying-ground a cippus, on which the extent of the burying-ground was marked, towards the road, and backwards to the fields." &mdash; Smith, 1873

Cippus

"A low column, sometimes round, but more frequently rectangular. Cippi were used for various purposes;…

"An ancient Greek or Roman temple, of rectangular construction, is terminated at its upper extremity by a triangular figure, both in front and rear, which rests upon the cornice of the entablature as a base, and has its sides formed by the cornices which terminate the roof. The whole of this triangle above the trabeation is implied in the term fastigium." &mdash; Smith, 1873.

Fastigium

"An ancient Greek or Roman temple, of rectangular construction, is terminated at its upper extremity…

"The <em>palla</em>, as well as the <em>pallium</em> and <em>palliolum</em>, was always a rectangular piece of cloth, exactly, or, at least, nearly square. It was, indeed, used in the very form in which it was taken from the loom, being made entirely by the weaver. Among the Greeks and Romans the most common material for the <em>palla</em> was wool. It was often folded about the body simply with a view to defend it from cold, and without any regard to gracefulness of appearance, as in the following cut, taken from an ancient intaglio." &mdash; Anthon, 1891

Palla

"The palla, as well as the pallium and palliolum, was always a rectangular…

"A square used by carpenters, masons, and other artificers to make their work rectangular. It was made by taking three flat wooden rulers of equal thickness, one of them being two feet ten inches long, the others each two feet long, and joining them together by their extremities, so as to assume the form of a right-angled triangle. This method, though only a close approximation, must have been quite sufficient for all common purposes. For the sake of convenience, the longest side, i. e. the hypotenuse of the triangle, was discarded, and the instrument then assumed the form in which it is exhibited, among other tools, on a tomb found at Rome, and which resembles that in modern use. A square of a still more simple fashion made by merely cutting a rectangular piece out of a board is shown on another sepulchral monument and copied in the woodcut which is here introduced." &mdash; Smith, 1873

Norma

"A square used by carpenters, masons, and other artificers to make their work rectangular. It was made…

"An outer garment. The English cloak, though commonly adopted as the translation of these terms, conveys no accurate conception of the form, material, or use of that which they denoted. The article designated by them was always a rectangular piece of cloth, exactly, or at least nearly square. It was indeed used in the very form in which it was taken from the loom, being made entirely by the weaver, without and aid from the tailor except to repair the injuries which it sustained by time. Whatever additional richness and beauty it received from the art of the dyer, " &mdash; Smith, 1873

Pallium

"An outer garment. The English cloak, though commonly adopted as the translation of these terms, conveys…

"The English cloak, though commonly adopted as the translation of these terms, conveys no accurate conception of the form, material, or use of that which they denoted. The article designated by them was always a rectangular piece of cloth, exactly, or at least nearly square. It was indeed used in the very form in which it was taken from the loom, being made entirely by the weaver, without any aid from the tailor except to repair the injuries which it sustained by time. Whatever additional richness and beauty it received from the art of the dyer, was bestowed upon it before its materials were woven into cloth or even spun into thread. Most commonly it was used without having undergone any process of this kind. The raw material, such as wool, flax, or cotton, was manufactured in its natural state, and hence pallia were commonly white, although from the same cause brown, drab, and gray, were also prevailing colours." &mdash; Smith, 1873

Palium

"The English cloak, though commonly adopted as the translation of these terms, conveys no accurate conception…

"Serra, a saw. It was made of iron. The form of the larger saw used for cutting timber is seen in the annexed woodcut, which is taken from a miniature in the celebrated Dioscorides written at the beginning of the sixth century. It is of the kind called the frame-saw, because it is fixed in a rectangular frame. It was held by a workman at each end. The woodcut also shows the blade of the saw detached from its frame, with a ring at each end for fixing it in the frame. On each side of the last-mentioned figure is represented a hand-saw adapted to be used by a single person." &mdash; Smith, 1873

Serra

"Serra, a saw. It was made of iron. The form of the larger saw used for cutting timber is seen in the…

A transparent body, with usually three sides and two equal and parallel triangular ends or bases.

Prism

A transparent body, with usually three sides and two equal and parallel triangular ends or bases.

A hand holding a square pyramid, suspended by a string.

Hand and pyramid

A hand holding a square pyramid, suspended by a string.

"Crystal faces are described according to their relations to the crystallographic axes. A series of numbers which indicate the relative distances by which a face intersects the different axes are called its parameters. " &mdash; Ford, 1912

Orthohombie prism

"Crystal faces are described according to their relations to the crystallographic axes. A series of…

"The prism of the first order consists of four rectangular vertical faces, each of which intersects the two horizontal crystallographic axes equally." &mdash; Ford, 1912

First order prism

"The prism of the first order consists of four rectangular vertical faces, each of which intersects…

"The prism of the second order consists of four rectangular vertical faces, each of which intersects one horizontal crystallographic axis and is parallel to the other two axes." &mdash; Ford, 1912

Second order prism

"The prism of the second order consists of four rectangular vertical faces, each of which intersects…

"The dietetragonal prism is a form consisting of eight rectangular vertical faces, each of which intersects one horizontal crystallographic axis and is parallel to the other two axes." &mdash; Ford, 1912

Ditetragonal prism

"The dietetragonal prism is a form consisting of eight rectangular vertical faces, each of which intersects…

"This is a form consisting of six rectangular vertical faces each of which intersects two of the horizontal axes equally and the intermediate horizontal axis at one-half this distance." &mdash; Ford, 1912

Prism of the first order

"This is a form consisting of six rectangular vertical faces each of which intersects two of the horizontal…

"This is a form consisting of six rectangular vertical faces, each of which intersects two of the horizontal axes equally and the immediate horizontal axis at one half this distance." &mdash; Ford, 1912

Prism of the second order

"This is a form consisting of six rectangular vertical faces, each of which intersects two of the horizontal…

"The dihexagonal prism has twelve rectangular vertical faces, each of which intersects all three of the horizontal crystallographic axes at different lengths." &mdash; Ford, 1912

Dihexagonal prism

"The dihexagonal prism has twelve rectangular vertical faces, each of which intersects all three of…

"A crystal of zincite with a prism terminated by a pyramid above a basal pinacoid below." &mdash; Ford, 1912

Zincite

"A crystal of zincite with a prism terminated by a pyramid above a basal pinacoid below." — Ford,…

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They are also commonly characterized by the presence of three faces of a triangular prism." &mdash; Ford, 1912

Tourmaline

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They are also commonly characterized by the presence of three faces of a triangular prism." &mdash; Ford, 1912

Tourmaline

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They are also commonly characterized by the presence of three faces of a triangular prism." &mdash; Ford, 1912

Tourmaline

"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…

"The quartz crystals are said to be right or left handed, depending upon whether these faces are to be observed trunctuating the edges between prism and rhombohedron." &mdash; Ford, 1912

Right-handed quartz

"The quartz crystals are said to be right or left handed, depending upon whether these faces are to…

"The quartz crystals are said to be right or left handed, depending upon whether these faces are to be observed trunctuating the edges between prism and rhombohedron." &mdash; Ford, 1912

Left-handed quartz

"The quartz crystals are said to be right or left handed, depending upon whether these faces are to…

"Orthorhombic. Crystals commonly tabular parallel to basal plane, showing also short prisms and low brachydomes." &mdash; Ford, 1912

Marcasite

"Orthorhombic. Crystals commonly tabular parallel to basal plane, showing also short prisms and low…

"Orthohombric. Usually in tabular diamond-shaped crystals, formed by a short prism terminated by low brachydomes. The brachydomes are usually striated parallel to the brachy-axis." &mdash; Ford, 1912

Arsenopyrite

"Orthohombric. Usually in tabular diamond-shaped crystals, formed by a short prism terminated by low…

"Orthohombric. Usually in tabular diamond-shaped crystals, formed by a short prism terminated by low brachydomes. The brachydomes are usually striated parallel to the brachy-axis. Twinned at times, giving stellate groups; the different individuals of the twin groups being distinguished from each other by the direction of the striations upon them." &mdash; Ford, 1912

Arsenopyrite

"Orthohombric. Usually in tabular diamond-shaped crystals, formed by a short prism terminated by low…

"Orthohombric. Crystals usually short prismatic to tabular. Sometimes quite complex with many prism, pyramid and dome faces. Frequently twinned, giving tabular crystals with recurring reentrant angles in the prism zone." &mdash; Ford, 1912

Bournonite

"Orthohombric. Crystals usually short prismatic to tabular. Sometimes quite complex with many prism,…

"Terminated usually by a combination of a positive and negative rhombohedron, which often are so equally developed as to give the effect of a hexagonal pyramid. Sometimes one rhombohedron predominates or occurs alone. At times the prism faces are wanting, and the combination of the two rhombodendrons gives what appears to be a doubly terminated hexagonal pyramid, known as a quartzoid." &mdash; Ford, 1912

Quartz

"Terminated usually by a combination of a positive and negative rhombohedron, which often are so equally…

"Hexagonal-rhombohedral. Crystals usually prismatic in habit or tapering hexagonal pyramids." &mdash; Ford, 1912

Corundum

"Hexagonal-rhombohedral. Crystals usually prismatic in habit or tapering hexagonal pyramids." —…

"Hexagonal-rhombohedral. Crystals usually prismatic in habit or tapering hexagonal pyramids." &mdash; Ford, 1912

Corundum

"Hexagonal-rhombohedral. Crystals usually prismatic in habit or tapering hexagonal pyramids." —…

"Orthorhombic. Acicular pyramidal; consisting of a prism terminated by a combination of a very steep pyramid and brachydome." &mdash; Ford, 1912

Aragonite

"Orthorhombic. Acicular pyramidal; consisting of a prism terminated by a combination of a very steep…

"Orthorhombic. Tabular; consisting of prominent brachypinacoid faces modified by a prism and a low brachydome." &mdash; Ford, 1912

Aragonite

"Orthorhombic. Tabular; consisting of prominent brachypinacoid faces modified by a prism and a low brachydome."…

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base, prism, with often smaller orthodomes." &mdash; Ford, 1912

Orthoclase

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base,…

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base, prism, with often smaller orthodomes." &mdash; Ford, 1912

Orthoclase

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base,…

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base, prism, with often smaller orthodomes." &mdash; Ford, 1912

Orthoclase

"Monoclinic. Crystals are usually prismatic in habit and have as prominent forms, clinopinacoid, base,…

"Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each other." &mdash; Ford, 1912

Amphibole

"Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each…

"Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each other." &mdash; Ford, 1912"

Amphibole

"Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each…

"Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present consist only of prism of first order and base." &mdash; Ford, 1912

Beryl

"Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present…

"Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present consist only of prism of first order and base. Small pyramid faces of both the first and second orders sometimes occur, but the pyramid faces are rarely prominent." &mdash; Ford, 1912

Beryl

"Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present…

"Tetragonal. Prismatic in habit. Often vertically striated. Common forms are prisms of first and second orders, pyramid of first order and base." &mdash; Ford, 1912

Vesuvianite

"Tetragonal. Prismatic in habit. Often vertically striated. Common forms are prisms of first and second…

"Tetragonal. Crystals usually show a simple combination of prism and pyramid of the first order. The prism of the second order and a ditetragonal pyramid also at times observed." &mdash; Ford, 1912

Zircon

"Tetragonal. Crystals usually show a simple combination of prism and pyramid of the first order. The…

"Orthohombic, hemimorphic. Crystals usually tabular parallel to the brachypinacoid. They show prism faces and are terminated above usually by a combination of macrodomes and brachydomes and base, and below by a pyramid." &mdash; Ford, 1912

Calamine

"Orthohombic, hemimorphic. Crystals usually tabular parallel to the brachypinacoid. They show prism…

"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular prism, with three faces, prominent, which with the tendency of the prism faces to be vertically striated and to round into each other gives the crystals usually a cross section like a spherical triangle." &mdash; Ford, 1912

Tourmaline

"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular…

"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular prism, with three faces, prominent, which with the tendency of the prism faces to be vertically striated and to round into each other gives the crystals usually a cross section like a spherical triangle. Crystals are commonly terminated by base and low positive and negative rhombohedrons; sometimes scalenohedrons are present. When the crystals are doubly terminated they usually show different forms at the opposite ends of the vertical axis." &mdash; Ford, 1912

Tourmaline

"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular…

"Orthohombic. Habit prismatic, showing usually a combination of prism with large angle, brachypinacoid, base and macrodome." &mdash; Ford, 1912

Staurolite

"Orthohombic. Habit prismatic, showing usually a combination of prism with large angle, brachypinacoid,…

"Tetragonal. Usually shows a combination of prism of second order, pyramid of first and basal plane." &mdash; Ford, 1912

Apophyllite

"Tetragonal. Usually shows a combination of prism of second order, pyramid of first and basal plane."…

"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and which in combination with short prism and pyramid faces gives a thin wedge-shaped crystal." &mdash; Ford, 1912

Titanite

"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…

"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and which in combination with short prism and pyramid faces gives a thin wedge-shaped crystal." &mdash; Ford, 1912

Titanite

"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…

"Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular. Usually terminated by prominent pyramid of first order and frequently a basal plane." &mdash; Ford, 1912

Apatite

"Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular.…

"Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular. Usually terminated by prominent pyramid of first order and frequently a basal plane." &mdash; Ford, 1912

Apatite

"Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular.…

"Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence of a short prism. Both macro- and brachydomes usually present, either beveling the corners of the diamond-shaped crystals, or if the prism faces are wanting, beveling the edges of the tavles and forming rectangular prismatic-shaped crystals elongated parallel to either the brachy- or macro-axis." &mdash; Ford, 1912

Barite

"Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence…

"Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence of a short prism. Both macro- and brachydomes usually present, either beveling the corners of the diamond-shaped crystals, or if the prism faces are wanting, beveling the edges of the tavles and forming rectangular prismatic-shaped crystals elongated parallel to either the brachy- or macro-axis." &mdash; Ford, 1912

Barite

"Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence…

"Orthorhombic. Crystals resemble closely those of barite. Commonly tabular parallel to the base or prismatic parallel to the brachy- or macro-axis with prominent development of the domes. Crystals which are elongated parallel to the brachy-axis are frequently terminated in front by four faces in nearly equal development, consisting of 2 prism faces and 2 of the macrodome." &mdash; Ford, 1912

Celestite

"Orthorhombic. Crystals resemble closely those of barite. Commonly tabular parallel to the base or prismatic…

"Monoclinic. Crystals usually tabular parallel to clinopinacoid; in diamond-shaped crystals with edges beveled by prism and pyramid faces." &mdash; Ford, 1912

Gypsum

"Monoclinic. Crystals usually tabular parallel to clinopinacoid; in diamond-shaped crystals with edges…