"A Rose Window is a circular window, divided into compartments by mullions and tracery radiating from a center, also called Catharine wheel and marigold window according to modifications of the design. It forms a fine feature of the church architecture of the 13th and 14th centuries."—(Charles Leonard-Stuart, 1911)

Rose Window

"A Rose Window is a circular window, divided into compartments by mullions and tracery radiating from…

Picture of a baby at a window

Baby

Picture of a baby at a window

Children looking out a window at a star.

Star

Children looking out a window at a star.

Child looking out a window.

Child at Window

Child looking out a window.

A classroom of students looking out the window.

Classroom

A classroom of students looking out the window.

The frame of a window in which the panes of glass are set.

Sash

The frame of a window in which the panes of glass are set.

An opening in the wall of a building for the admission of light and air, usually closed by glazed sashes, capable of being opened and shut.

Window

An opening in the wall of a building for the admission of light and air, usually closed by glazed sashes,…

A shade for windows to keep the sun out, and regulate the light desired in a room.

Window-shade

A shade for windows to keep the sun out, and regulate the light desired in a room.

"Tapping with his Fingertips on the Window-Pane."

Tapping

"Tapping with his Fingertips on the Window-Pane."

A curtain covering a window.

Curtain

A curtain covering a window.

An oriel is a bay window that projects from an upper floor of a building. This example is from a house on Fifty-Fourth Street in New York. C. C. Haight, Architect.

Oriel

An oriel is a bay window that projects from an upper floor of a building. This example is from a house…

Architecture of Cathredals in England. Perpendicular window, West Front at Norwich Cathedral, inserted in a Norman wall.

Window

Architecture of Cathredals in England. Perpendicular window, West Front at Norwich Cathedral, inserted…

"Why no one should spit on floors or sidewalks and why flies should be kept away from food." —Davison, 1910

Flies outside window

"Why no one should spit on floors or sidewalks and why flies should be kept away from food." —Davison,…

"The same house, as it might be. notice the fine effect of the windows." —Kinne, 1920

Gambrel roof

"The same house, as it might be. notice the fine effect of the windows." —Kinne, 1920

"A modern small house with the 'lean-to' motif. Notice that the long slope faces the front." —Kinne, 1920

Modern house

"A modern small house with the 'lean-to' motif. Notice that the long slope faces the front." —Kinne,…

"The 'Byron' dining room. Georgian furniture. —Kinne, 1920

Byron dining room

"The 'Byron' dining room. Georgian furniture. —Kinne, 1920

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…

Ladder bracket on the back of a ladder. These are made in various styles. Some fasten to rungs. This one attaches to the siderails. It is not, therefore, likely to depend upon a defective rung and so it is safer. They are used as shown on the outside of the ladder to hold a plank at the top of two extension ladders in painting roof cornices. It is possible to swing these brackets to a position on the under side of the ladders. There they make an excellent scaffold from which to work on a wall or window frame.

Ladder Bracket

Ladder bracket on the back of a ladder. These are made in various styles. Some fasten to rungs. This…

Ladder bracket on top rung of ladder. These are made in various styles. Some fasten to rungs. This one attaches to the siderails. It is not, therefore, likely to depend upon a defective rung and so it is safer. They are used as shown on the outside of the ladder to hold a plank at the top of two extension ladders in painting roof cornices. It is possible to swing these brackets to a position on the under side of the ladders. There they make an excellent scaffold from which to work on a wall or window frame.

Ladder Bracket

Ladder bracket on top rung of ladder. These are made in various styles. Some fasten to rungs. This one…

An extension plank which fastens to a window sill from the inside. Used where there are many upper-story window sash and casings to be painted outside on brick buildings. A faster way to work than with swing stage on windows too high to reach with a ladder.

Window Bracket

An extension plank which fastens to a window sill from the inside. Used where there are many upper-story…

A fairly flexible, flat steel blade 1 1/4 inches wide. Used for glazing- that is, placing putty on to window sash to hold the glass in place. Also a general utility tool used for cleaning and scraping off paint, dirt, etc. on all work.

Putty Knife

A fairly flexible, flat steel blade 1 1/4 inches wide. Used for glazing- that is, placing putty on to…

"Two-light lancet." &mdash;D'Anvers, 1895

Two-light lancet

"Two-light lancet." —D'Anvers, 1895

"Tracery of later date." &mdash;D'Anvers, 1895

Tracery

"Tracery of later date." —D'Anvers, 1895

"The cathedrals of Salisbury, Chichester, Lincoln, and York, Beverley Minster, and Westminster Abbey, contain specimens of Early English windows." &mdash;D'Anvers, 1895

Early English window

"The cathedrals of Salisbury, Chichester, Lincoln, and York, Beverley Minster, and Westminster Abbey,…

This illustration shows the head of a goat looking out a window.

Goat Head

This illustration shows the head of a goat looking out a window.

A cow sticking his head out of a barn window and eating potted flowers.

Cow Eating Flowers

A cow sticking his head out of a barn window and eating potted flowers.

A fancy parlor chair or window seat.

Parlor Chair

A fancy parlor chair or window seat.

A man riding his horse through town.

Horseback Man

A man riding his horse through town.

A window of trachyte, of careful workmanship, in one piece. Details that show Tiahuanacu existed.

Window

A window of trachyte, of careful workmanship, in one piece. Details that show Tiahuanacu existed.

A boy looking out a window.

Boy

A boy looking out a window.

An open window decorated with drapes and pillows.

Drapes

An open window decorated with drapes and pillows.

An open window decorated with a border of oiil paints.

Decorative Border

An open window decorated with a border of oiil paints.

A window decorated with drapes and ornametal plates and flowers.

Decorated Window

A window decorated with drapes and ornametal plates and flowers.

A woman washing her windows with a chamois.

Window Washing

A woman washing her windows with a chamois.

"A printing frame that is well adapted to sheets not over 17 in. x 21 in. The frame is placed face downwards and the back A is removed by unhooking the brass spring clips B, B, and lifting it out. The tracing is laid on the glass C, with the inked side touching the glass. A sheet of the prepared paper, perfectly dry, is laid on the tracing with the yellow side downwards." &mdash; Hallock, 1905

Painting Frame

"A printing frame that is well adapted to sheets not over 17 in. x 21 in. The frame is placed face downwards…

"A printing frame that is well adapted to sheets not over 17 in. x 21 in. The frame is placed face downwards and the back A is removed by unhooking the brass spring clips B, B, and lifting it out. The tracing is laid on the glass C, with the inked side touching the glass. A sheet of the prepared paper, perfectly dry, is laid on the tracing with the yellow side downwards." — Hallock, 1905. The painting frame is used to hold the original in contact with the light-sensitive paper in the blueprint reproduction process.

Painting Frame

"A printing frame that is well adapted to sheets not over 17 in. x 21 in. The frame is placed face downwards…

"A patented frame that can be shoved out of the window and adjusted to any angle; it is made in different sized from 16 in. x 24 in. to 48 in. x 72 in. When not in use, it can be folded up against the wall and occupies but little space." — Hallock, 1905. The frame is used in the blueprint reproduction process.

Painting Frame

"A patented frame that can be shoved out of the window and adjusted to any angle; it is made in different…

A shell resembling a saddle.

Saddle Shell

A shell resembling a saddle.

"A projecting gallery in front of a window or of several windows, with a balustrade or parapet before it, and supported by consoles, or brackets fixed in the wall, or by pillars resting on the ground below." &mdash; Chambers' Encyclopedia, 1875

Balcony

"A projecting gallery in front of a window or of several windows, with a balustrade or parapet before…

"One of the names given to those narrow apertures so often seen in the walls of old castles, and through which the cross-bowmen discharged their arrows." &mdash; Chambers' Encyclopedia, 1875

Balistraria

"One of the names given to those narrow apertures so often seen in the walls of old castles, and through…

A stained glass window in the design of a rose.

Rose Window

A stained glass window in the design of a rose.

"Section through Hall of Columns, Karnak. a, Clerestory window." &mdash; The Encyclopedia Britannica, 1910

Hall of Columns

"Section through Hall of Columns, Karnak. a, Clerestory window." — The Encyclopedia Britannica,…

Cross section of Hagia Sophia in Istanbul (historically Constantinople). The Greek name Hagia Sophia means "Holy Wisdom." It is known as Ayasofya in Turkish.
<p>The building was originally constructed as a church between A.D. 532 and 537 on the orders of the Byzantine Emperor Justinian I. In 1453, Constantinople was conquered by the Ottoman Empire under Mehmed the Conqueror, who ordered the building be converted into a mosque. It was closed in 1931 and reopened as a museum in 1935. This important milestone in the history of architecture was the world's largest cathedral for nearly a thousand years. It also greatly influenced the design of Ottoman mosques, including the nearby Blue Mosque.

Hagia Sophia

Cross section of Hagia Sophia in Istanbul (historically Constantinople). The Greek name Hagia Sophia…

"An optical instrument employed for exhibiting the images of objects in their forms and colors, so that they may be traced and a picture drawn, or may be represented by photography. A simple camera obscura is presented by a darkened chamber into which no light is permitted to enter excepting by a small hole in the window-shutter. A picture of the objects opposite the hole will then be seen on the wall or on a white screen placed opposite the opening." &mdash; Winston's Encyclopedia, 1919

Camera Obscura

"An optical instrument employed for exhibiting the images of objects in their forms and colors, so that…

"Solar Spectrum.&mdash;If a ray, proceeding from the sun, be admitted into a darkened chamber, through an aperture in the window shutter, and allowed to pass through a triangular shaped piece of glass, called a prism, the light will be decomposed, and instead of a spot of white, there will be seen, on the opposite wall, a most brilliant display of colors, including all those seen in the rainbow." &mdash;Comstock, 1850

Solar Spectrum

"Solar Spectrum.—If a ray, proceeding from the sun, be admitted into a darkened chamber, through…

A stage or playform projecting from the wall of a building.

Venetian Balcony

A stage or playform projecting from the wall of a building.

A small blue fly, slender and somewhat flattened in appearance, with yellow or reddish legs.

Window Fly

A small blue fly, slender and somewhat flattened in appearance, with yellow or reddish legs.

A little boy and his mother looking out the window at rain.

Boy

A little boy and his mother looking out the window at rain.

Semi-diagrammatic section through the right ear. Labels: M, concha; G, the external auditory canal; T, tympanic, or drum-membrane (ear drum); P, tympanum, or middle ear; o, oval window; r, round window. Extending from T to o is seen the chain of the tympanic bones; R, Eustachian tube; V, B, S, bony labyrinth; V, vestibule; B, semicircular canal; S, cochlea; b, l, v, membranous labyrinth in semi-circular canal and in vestibule. A, auditory nerve dividing into branches for vestibule, semicircular canal, cochlea.

Ear and Auditory Canal

Semi-diagrammatic section through the right ear. Labels: M, concha; G, the external auditory canal;…

"Thus, if a sunbeam, passing through a small aperure in the window shutter a, be permitted to fall upon the plane mirror, or looking glass, c, d, at right-angles, it will be reflected back at right-angles with the mirror, and therefore will pass back again in exactl the same direction in which it approached." -Comstock 1850

Reflection of Light

"Thus, if a sunbeam, passing through a small aperure in the window shutter a, be permitted to fall upon…

"Get a lamp-chimney, preferably cylindrical. With a diamond or a steel glass-cutter, cut a disk of window glass a little larger than the cross-section of the lamp-chimney. Pour some fine emery powder on the disk, and rub one end of the chimney upon it, thus grinding them until they fit accurately...place [the chimney] under the water as shown. the upward pressure of the water will hold the disk in place. Pour water carefully into the tube; the disk will fall as soon as the weight of the water in the chimney plus the weight of th disk, exceeds the upward pressure of the water." -Avery 1895

Water Pressure Experiment

"Get a lamp-chimney, preferably cylindrical. With a diamond or a steel glass-cutter, cut a disk of window…

Goldilocks escaping the Three Bears.

Girl Leaving Through Window

Goldilocks escaping the Three Bears.

Window with the curtain slightly drawn.

Window

Window with the curtain slightly drawn.

A girl sitting on a chair, looking dreamily out the window.

Girl Sitting

A girl sitting on a chair, looking dreamily out the window.

Two beds near a window in a bedroom.

Bedroom

Two beds near a window in a bedroom.

A circular window, divided into compartments by mullions and tracery radiating from a centre, also called Catharine-wheel, and marigold-window.

Rose Brickwork Window

A circular window, divided into compartments by mullions and tracery radiating from a centre, also called…

Window with a baluster. Saxon Architecture is the earliest stage of native English architecture, its period being from the conversion of England to Christianity till the conquest or near it, when Norman architecture began to prevail.

Saxon Architecture Window

Window with a baluster. Saxon Architecture is the earliest stage of native English architecture, its…

The Gable-Opening of a Dormer-Window architectural frame was a 17th century French style frame.

Gable-Opening of a Dormer-Window

The Gable-Opening of a Dormer-Window architectural frame was a 17th century French style frame.

"Section through right ear. 1, helix; 2, concha; 3, outer passage; 4, 5, 6, semi-circular canals; 7, oval window; 8, cochlea; 9, Eustachian tube; 10, eardrum." -Foster, 1921

Ear

"Section through right ear. 1, helix; 2, concha; 3, outer passage; 4, 5, 6, semi-circular canals; 7,…

The coat of arms of Albrecht D&uuml;rer.

Dürer Coat of Arms

The coat of arms of Albrecht Dürer.