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Principal forms of the hexagonal system: dihexagonal prism

Dihexagonal Prism

Principal forms of the hexagonal system: dihexagonal prism

Principal forms of the hexagonal system: hexagonal prism

Hexagonal Prism Second Order

Principal forms of the hexagonal system: hexagonal prism

Principal forms of the hexagonal system: hexagonal prism

Hexagonal Prism First Order

Principal forms of the hexagonal system: hexagonal prism

Principal forms of the hexagonal system: rhomohedron.

Rhombohedron

Principal forms of the hexagonal system: rhomohedron.

Principal forms of the hexagonal system: scalenohedron

Scalenohedron

Principal forms of the hexagonal system: scalenohedron

Principal forms of the hexagonal system: trigonal prism

Trigonal Prism

Principal forms of the hexagonal system: trigonal prism

Principal forms of the hexagonal system: ditrigonal prism

Ditrigonal Prism

Principal forms of the hexagonal system: ditrigonal prism

Principal forms of the triclinic system: tryclinic pyramid

Triclinic Pyramid

Principal forms of the triclinic system: tryclinic pyramid

Principal forms of the triclinic system: hemi-brachy dome.

Hemi-brachy Dome

Principal forms of the triclinic system: hemi-brachy dome.

Principal forms of the triclinic system: hemi-macro dome.

Hemi-macro Dome

Principal forms of the triclinic system: hemi-macro dome.

Principal forms of the triclinic system: triclinic hemi-prism

Triclinic Hemi-prism

Principal forms of the triclinic system: triclinic hemi-prism

Principal forms of the triclinic system: macro-pinacoids

Macro-pinacoids

Principal forms of the triclinic system: macro-pinacoids

"Transverse Section through Side Walls of Skull, showing the Inner Parts of the Ear. Co, concha or external ear, or pinna; EM, external auditory meatus; TyM, tympanic membrane; Inc, incus; Mall, malleus; ASC, PSC, ESC, anterior, posterior, and external semicircular canals; Coc, cochlea; Eu, Eustachian tube; IM, internal auditory meatus, through which the auditory nerve passes to the organ of hearing." -Whitney, 1911

Inner Ear

"Transverse Section through Side Walls of Skull, showing the Inner Parts of the Ear. Co, concha or external…

"External Ear, or Pinna. 1, helix; 2, fossa of antihelix, or fossa triangularis; 3, fossa of helix, or fossa scaphoidea; 4, antihelix; 5, 5, concha; 6, antitragus; 7, lobule; 8, tragus." -Whitney, 1911

External Ear

"External Ear, or Pinna. 1, helix; 2, fossa of antihelix, or fossa triangularis; 3, fossa of helix,…

"Dome-System of the Church of Sta. Sophia at Constantinople. The Byzantine style of this first period reached its highest example and splendor in the church of Sta. Sophia at Constantinople. After this church, which was originally built by Constantine, had been burnt to the ground, it was rebuilt, with the utmost care, and at great expense, by Justinian. On each of he open sides of the dome-covered square there abuts a semicircle with semi-domes of somewhat inferior height to the main dome." This diagram shows how the semi-domes are penetrated on each side by three smaller vaults.

Dome System of Hagia Sophia

"Dome-System of the Church of Sta. Sophia at Constantinople. The Byzantine style of this first period…

An illustration of Bussen's cell.The Grove cell was an early electric primary cell named after its inventor, British chemist William Robert Grove, and consisted of a zinc anode in concentrated sulfuric acid and a platinum cathode in concentrated nitric acid, the two separated by a porous ceramic pot. The Grove cell was the favored power source of the early American telegraph system in the period 1840 - 1860 because it offered a high current output and higher voltage than the earlier Daniell cell (at 1.9 volts and 1.1 volts, respectively).

Grove Cell

An illustration of Bussen's cell.The Grove cell was an early electric primary cell named after its inventor,…

A vacuum gauge is used to measure the pressure in a vacuum — which is further divided into two subcategories: high and low vacuum (and sometimes ultra-high vacuum). The applicable pressure range of many of the techniques used to measure vacuums have an overlap. Hence, by combining several different types of gauge, it is possible to measure system pressure continuously from 10 mbar down to 10-11 mbar.

Vacuum Gauge

A vacuum gauge is used to measure the pressure in a vacuum — which is further divided into two…

A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between two flanges around the wheel's circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Pulley

A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between…

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between two flanges around the wheel's circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Pulley Blocks

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel…

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between two flanges around the wheel's circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Pulley Blocks

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel…

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between two flanges around the wheel's circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Pulley Blocks

An illustration of a block pulley. A pulley (also called a block) is a mechanism composed of a wheel…

A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between two flanges around the wheel's circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Pulley

A pulley (also called a block) is a mechanism composed of a wheel (called a sheave) with a groove between…

"Esophageal Ring. Anterior end of nervous system of Polynoë, a polychaetous annelid, showing, a, cerebral ganglia, connected by the esophageal ring, b, with the ventral series of ganglia, c." -Whitney, 1911

Scale Worm Nervous System

"Esophageal Ring. Anterior end of nervous system of Polynoë, a polychaetous annelid, showing, a,…

Sir Thomas More (7 February 1478 – 6 July 1535) was an English lawyer, author, and statesman who in his lifetime gained a reputation as a leading humanist scholar, and occupied many public offices, including Lord Chancellor (1529–1532), in which he had a number of people burned at the stake for heresy. More coined the word "utopia", a name he gave to an ideal, imaginary island nation whose political system he described in the eponymous book published in 1516. He was beheaded in 1535 when he refused to sign the Act of Supremacy that declared Henry VIII Supreme Head of the Church in England.

Sir Thomas More

Sir Thomas More (7 February 1478 – 6 July 1535) was an English lawyer, author, and statesman who…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system. Neither axis is labeled.

Blank Coordinate Grid With Grid Lines Shown

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system. Neither…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with both axes labeled.

Coordinate Grid With Axes Labeled And Grid Lines Shown

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with both…

East-west section across South Dakota to show the Dakota artesian system. The Dakota sandstone is composed for the most part of well-rounded and well-assorted quartz grains, representing an ancient river and wind-formed sand deposit.

Dakota Artesian System

East-west section across South Dakota to show the Dakota artesian system. The Dakota sandstone is composed…

"Human Eye, in Median Vertical Anteroposterior Section. (Ciliary processes shown, through not all lying in this section.) A, anterior, and A', posterior chambers of aqueous humor; a, central artery of retina; C, cornea; Ch, choroid; cj, conjunctiva; cm, ciliary muscle; cp, ciliary processs; H, hyaloid; I, iris; L, crystalline lens in its capsule (the reference-line passes through the pupil); l, l', insertion of tendon of superior and inferior rectus muscles; o, optic nerve; P, canal of Petit; R, retina; S, sclerotic; s, s', circular sinus or canal of Schlemm; V, vitreous body filling back part of the eye." -Whitney, 1911

Median Vertical Anteroposterior Section of Eye

"Human Eye, in Median Vertical Anteroposterior Section. (Ciliary processes shown, through not all lying…

"Exterior of Left Human Eye. 1, supercilium, or eyebrow; 2, palpebra superior, or upper eyelid; 3, 3, cilia, or eyelashes; 4, caruncula lacrymalis; 5, plica semilunaris; 6, pupil; 7, iris." -Whitney, 1911

Exterior of Left Human Eye

"Exterior of Left Human Eye. 1, supercilium, or eyebrow; 2, palpebra superior, or upper eyelid; 3, 3,…

"Muscles of Left Human Eyeball. so, superior oblique, passing through a trochlea or pulley; io, inferior oblique; sr, superior rectus; ifr, interior rectus; ir, internal rectus; er, external rectus; f, frontal sinus; m, maxillary sinus; o, optic nerve." -Whitney, 1911

Muscles of Left Eyeball

"Muscles of Left Human Eyeball. so, superior oblique, passing through a trochlea or pulley; io, inferior…

"Bones of Human Foot, or Pes, the third principal segment of the hind limb, consisting of tarsus, metatarsus, and phalanges. a, astralagus; ca, calcaneum; n, navicular, or scaphoid; co, cuboid; c1, c2, c3, entocuneiform, mesocuneiform, and ectocuneiform, or inner, middle, and outer cuneiform bones. The foregoing seven bones constitute the tarsus, and m1 to m5, first to the fifth metatarsal, constitue the metatarsus. The remaining fourteen bones are the phalanges, three to each digit excepting the great toe; h, distal phalanx of the hallux or great toe." -Whitney, 1911

Bones of Human Foot

"Bones of Human Foot, or Pes, the third principal segment of the hind limb, consisting of tarsus, metatarsus,…

Diagrams showing the development of river systems in anticlinal folds with anticlinal valleys as the end product. As a result of this erosion the streams flowing in the synclinal valleys are diverted by capture and the main streams become anticlinal.

Development of River Systems

Diagrams showing the development of river systems in anticlinal folds with anticlinal valleys as the…

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system." -Whitney, 1911

Obverse Side of Silver Franc of Henry III

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system."…

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system." -Whitney, 1911

Reverse Side of Silver Franc of Henry III

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system."…

An illustration of a human eye.

Human Eye

An illustration of a human eye.

"Archaeornithes is at present represented by but one member, the first undoubted fossil Bird, made known in 1861 by Andreas Wagner form the Jurassic slate formation of Solenhofen in Bavaria, and now preserved in a British Museum. This he described under the name of Griphosaurus; but as Hermann von Meyer had already bestowed the title of Archaeopteryx Lithographica upon a bird, presumably identical, a feather of which had been obtained from the above system." A. H. Evans, 1900 This sample was obtained from the Limestone in Berlin

Archaeopteryx Lithographica

"Archaeornithes is at present represented by but one member, the first undoubted fossil Bird, made known…

Niagara, though often popularly translated as "Thundering Waters", this is a folk translation with no basis in historical native North American language. The name is a of a famous waterfalls and river through which Lake Erie empties into Lake Ontario, as part of the Great Lakes drainage system of North America. This shows the geological position of Niagara River and Falls, and the ancient levels of the lake waters from Lake Ontario to Chicago.

Niagara River and Falls

Niagara, though often popularly translated as "Thundering Waters", this is a folk translation with no…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is a fresh water flatworm. This is an anatomy of freshwater flatworm (Planaria), showing the excretory system, with flame-cell. The alimentary canal is stippled.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This shows the nervous system of the flatworm.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This parasitic flatworm diagram shows the (m) mouth, the (o) opening of the reproductive system, and (s) sucker and spines for attachment. The digestive system is stippled and the nervous system is black.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

The earthworms are also known as megadriles, in the families Tubificidae, Lumbriculidae, and Enchytraeidae, among others. The basic body plan is a tube, the digestive system, within a tube, the muscular slimy, moist outer body. The body is annular, formed of segments that are most specialized in the anterior and have a simple circulatory system. They have two main blood vessels that extend through the length of their body: a ventral blood vessel which leads the blood to the posterior end, and a dorsal blood vessel which leads to the anterior end. The dorsal vessel is contractile and pumps blood forward, where it is pumped into the ventral vessel by a series of "hearts" (aortic arches) which vary in number in the different taxa.

Earthworm

The earthworms are also known as megadriles, in the families Tubificidae, Lumbriculidae, and Enchytraeidae,…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. The female is wingless and has a large waxen egg-sac (e.s.) attached to her body.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. Male scale insects are unusual in possessing only one pair of wings, thus making them resemble true flies (Diptera), though they lack the halteres (rudimentary hind wings) seen in flies, and have tail filaments, which do not occur in flies.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is a bit of leaf with scales.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is an adult female scale.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is the wax scale under which the female lives.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is a scale larva.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is an adult male scale.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

"Globigerina bulloides. GLOBIGERINIDAE. A family of chiefly pelagic foraminiferous rhizopods, with the perforate test free and calcareous, its several chambers inflated or globose and arranged in a turbinate spiral, the aperture simple or multiple and conspicuous, opening into an umbilical depression, and no supplementary skeleton or canal system." -Whitney, 1911

Globigerina

"Globigerina bulloides. GLOBIGERINIDAE. A family of chiefly pelagic foraminiferous rhizopods, with the…

"Globigerina bulloides. GLOBIGERINIDAE. A family of chiefly pelagic foraminiferous rhizopods, with the perforate test free and calcareous, its several chambers inflated or globose and arranged in a turbinate spiral, the aperture simple or multiple and conspicuous, opening into an umbilical depression, and no supplementary skeleton or canal system." -Whitney, 1911

Globigerina

"Globigerina bulloides. GLOBIGERINIDAE. A family of chiefly pelagic foraminiferous rhizopods, with the…

The Capitoline Hill is a Roman hill between the Forum and the Campus Martius. The Cloaca Maxima was one of the world's earliest sewage systems. "The Capitoline and Cloaca Maxima. A restoration." -Allen, 1890

Capitoline and Cloaca Maxima

The Capitoline Hill is a Roman hill between the Forum and the Campus Martius. The Cloaca Maxima was…

This is a plan of the Durham Cathedral, England. It is an example of English Gothic architecture. Building began in 1093 and was finished in approximately 40 years. "The square eastern termination, the less ambitious height, and the comparatively simple buttress–system, combine to give the English Gothic cathedral an air of greater repose than is found in the magnificent triumphs of French Gothic art." The scale is in feet.

Plan of Durham Cathedral, 1093–1133

This is a plan of the Durham Cathedral, England. It is an example of English Gothic architecture. Building…

This is a plan of the Salisbury Cathedral, England. It is an example of English Gothic architecture. The scale is in feet. "The square eastern termination, the less ambitious height, and the comparatively simple buttress–system, combine to give the English Gothic cathedral an air of great repose than is found in the magnificent triumphs of French Gothic art." The grouping "of 'lancet' windows, the piercing of the wall above them with the foiled circles, and the combination of the whole under an enclosed arch, soon led to the introduction of tracery, for which the design of earlier triforium arcades had also afforded a suggestion."

Plan of Salisbury Cathedral, 1075–1092

This is a plan of the Salisbury Cathedral, England. It is an example of English Gothic architecture.…

"The most noteworthy of the successors of Palladio at Venice were Scamozzi, and Longhena, the architect of the Della Salute church. Some of the churches of this style retain the Byzantine system of the Greek cross with barrel-vaultings and a central dome resting on four pillars or piers. Others, again, have the form of the basilica but with a system of their own, which produces a beautiful effect. This system consists of smaller domes in the aisles, all resting on pierces masses of masonry with barrel-vaultings connected with them, as, for instance San Salvador." The Basilica di Santa Maria della Salute (Basilica of St Mary of Health/Salvation), commonly known simply as the Salute, is a famous church in Venice, placed scenically at a narrow finger of land which lies between the Grand Canal and the Bacino di San Marco on the lagoon, visible as one enters the Piazza San Marco from the water. While it has the status of a minor basilica, its decorative and distinctive profile and location make it among the most photographed churches in Italy.

Della Salute Church and Custom House

"The most noteworthy of the successors of Palladio at Venice were Scamozzi, and Longhena, the architect…

"Ideal plan of the double-ringed body of a vertebrate. N, neural canal; H, haemal canal; the body separating them is the centrum of any vertebra, bearing e, and epapophysis, and y, a hypapophysis; n, n, neurapophyses; d, d, diapophyses; ns, bifid neural spine; pl, pl, pleurapophyses; h, h, haemapophyses; hs, bifid haemal spine. Drawn by Dr. R. W. Shufeldt, USA, After Owen. The Axial Skeleton of a bird or any vertebrated animal, that is, one having a back-bone, exhibits in cross-section two rings or hoops, one above and the other below a central point, like the upper and lower loops of a figure 8. The upper ring is the neural arch, so called because such cylinder encloses a section of the cerebro-spinal axis, or principal nervous system of a vertebrate (brain and spinal cord, whence arise all the nerves of the body, excepting those of the sympathetic nervous system). The lower ring is the haema arch, which similarly contains a section of the principal blood vessals and viscera.

Axial Skeleton

"Ideal plan of the double-ringed body of a vertebrate. N, neural canal; H, haemal canal; the body separating…

"Fig 55. - Actual section of the body in the thoracic region of a bird. N, neural canal; H, haemal canal; c, centrum of a dorsal vertebra; hy, hypapophysis; d, diapophysis; z, zygapophysis; ns, neural spine; r, pleurapophysis, or vertebral part of a free rib, bearing u, uncinate process or epipleura; cr, haemapophyses; or sternal part of the same; st, section of the sternum or breast-bone (haemal spine). Designed by Dr. R. W. Shufeldt, USA. This figure shows such a section, made across the thoracic or chest-region of the trunk. Here the upper ring (neural) is contracted, only surrounding the slender spinal cord, while the lower ring is expanded to enclose the heart and lungs." Elliot Coues, 1884

The Axial Skeleton

"Fig 55. - Actual section of the body in the thoracic region of a bird. N, neural canal; H, haemal canal;…

The Musée du Louvre or officially the Grand Louvre — in English, the Louvre Museum or Great Louvre, or simply the Louvre — is the national museum of France, the most visited museum in the world, and a historic monument. It is a central landmark of Paris, located on the Right Bank of the Seine in the 1st arrondissement (neighborhood). Nearly 35,000 objects from the 6th century BC to the 19th century are exhibited over an area of 60,600 square meters (652,300 square feet).Charles Le Brun (February 24 1619 – February 22 1690) was a French painter and art theorist, one of the dominant artists in 17th century France."Little by little a method of ornamentation was introduced by successive decorators and architects, which was eminently suited to the French taste. Androuet Du Cercean and Jean Lepautre are especially noticeable as representatives of this school of establishment. The sumptuous Apollo Gallery in the Louvre is a characteristic example of the productions of the latter. [This image] exhibits a portion of the system of decoration which pervades the whole gallery."

Fragment from the Apollo Gallery in the Louvre at Paris

The Musée du Louvre or officially the Grand Louvre — in English, the Louvre Museum or Great Louvre,…

The Palace of Versailles, or simply Versailles, is a royal château in Versailles, the île-de-France region of France. In French, it is known as the Château de Versailles."It was principally the above-mentioned system of Roccoco decoration and architectural detail which characterized the architecture of the time of Louis XV.; it is, consequently, sometimes designated as the style of Louis XV. [This image] gives a portion of an interior drawn in perspective.""Internal arrangement and decoration are the main characteristics of the style of this period, and in this direction the best results were doubtless produced. Large and lofty rooms, as well as scope for display, were indispensable; consequently this style of embellishment was most happily carried out in each state apartments, especially in the princely castles and palaces, or, as the French call them, the "Hôtels" of the aristocracy."

Saloon in the Palace of Versailles

The Palace of Versailles, or simply Versailles, is a royal château in Versailles, the île-de-France…

The Palace of Versailles, or simply Versailles, is a royal château in Versailles, the île-de-France region of France. In French, it is known as the Château de Versailles. "It was principally the above-mentioned system of Roccoco decoration and architectural detail which characterized the architecture of the time of Louis XV.; it is, consequently, sometimes designated as the style of Louis XV." This image depicts the entire wall. "Internal arrangement and decoration are the main characteristics of the style of this period, and in this direction the best results were doubtless produced. Large and lofty rooms, as well as scope for display, were indispensable; consequently this style of embellishment was most happily carried out in each state apartments, especially in the princely castles and palaces, or, as the French call them, the "Hôtels" of the aristocracy."

Saloon in the Palace of Versailles

The Palace of Versailles, or simply Versailles, is a royal château in Versailles, the île-de-France…

"The main essentials in all the Roccoco Styles are a certain independence in the ornamentation of the main architectural organism, the prominence of this ornamentation itself, and finally its shape and design. A luxurious elegance is displayed in the treatment of interiors, which was most happily employed in the embellishment of the state apartments. [This image] gives an example of the absence of connection among the various ornaments employed in the system of decoration, such as was especially peculiar to the churches of the Jesuits."

Jesuit Church, Rome

"The main essentials in all the Roccoco Styles are a certain independence in the ornamentation of the…