"The DO NOT ENTER sign shall be used where traffic is prohibited from entering a restricted roadway."-Federal Highway Administration, 2007

Do Not Enter, Black and White

"The DO NOT ENTER sign shall be used where traffic is prohibited from entering a restricted roadway."…

"The WRONG WAY sign may be used as a supplement to the DO NOT ENTER sign where an exit ramp intersects a crossroad or a crossroad intersects a one-way roadway in a manner that does not physically discourage or prevent wrong-way entry." -Federal Highway Administration, 2007

Wrong Way, Black and White

"The WRONG WAY sign may be used as a supplement to the DO NOT ENTER sign where an exit ramp intersects…

"Selective Exclusion signs give notice to road users that State or local statutes or ordinances exclude designated types of traffic from using particular roadways or facilities."-Federal Highway Administration, 2007

No Trucks, Black and White

"Selective Exclusion signs give notice to road users that State or local statutes or ordinances exclude…

"Selective Exclusion signs give notice to road users that State or local statutes or ordinances exclude designated types of traffic from using particular roadways or facilities."-Federal Highway Administration, 2007

No Bicycles, Black and White

"Selective Exclusion signs give notice to road users that State or local statutes or ordinances exclude…

This sign indicates that the parking space is reserved for persons with disabilities.

Reserved Parking, Black and White

This sign indicates that the parking space is reserved for persons with disabilities.

"To make the parking regulations more effective and to improve public relations by giving a definite warning, a sign reading TOW-AWAY ZONE may be appended to, or incorporated in, any parking prohibition sign. The Tow-Away Zone symbol sign may be used instead of the word message sign. The sign may have either a black or red legend and border on a white background." -Federal Highway Administration, 2007

Tow-Away Zone, Black and White

"To make the parking regulations more effective and to improve public relations by giving a definite…

"To make the parking regulations more effective and to improve public relations by giving a definite warning, a sign reading TOW-AWAY ZONE may be appended to, or incorporated in, any parking prohibition sign. The Tow-Away Zone symbol sign may be used instead of the word message sign. The sign may have either a black or red legend and border on a white background." -Federal Highway Administration, 2007

Tow-Away Zone, Outline

"To make the parking regulations more effective and to improve public relations by giving a definite…

"To make the parking regulations more effective and to improve public relations by giving a definite warning, a sign reading TOW-AWAY ZONE may be appended to, or incorporated in, any parking prohibition sign. The Tow-Away Zone symbol sign may be used instead of the word message sign. The sign may have either a black or red legend and border on a white background." -Federal Highway Administration, 2007

Tow-Away Zone, Silhouette

"To make the parking regulations more effective and to improve public relations by giving a definite…

The "NO PARKING sign may be used to prohibit any parking along a given highway."-Federal Highway Administration, 2007

No Parking, Black and White

The "NO PARKING sign may be used to prohibit any parking along a given highway." -Federal Highway Administration,…

"The No Pedestrian Crossing sign may be used to prohibit pedestrians from crossing a roadway at an undesirable location or in front of a school or other public building where a crossing is not designated."-Federal Highway Administration, 2007

No Pedestrian Crossing, Black and White

"The No Pedestrian Crossing sign may be used to prohibit pedestrians from crossing a roadway at an undesirable…

"The No Hitchhiking sign may be used to prohibit standing in or adjacent to the roadway for the purpose of soliciting a ride."-Federal Highway Administration, 2007

No Hitchhiking, Black and White

"The No Hitchhiking sign may be used to prohibit standing in or adjacent to the roadway for the purpose…

"When a National Network route is signed, the National Network sign shall be used."-Federal Highway Administration, 2007

National Network, Black and White

"When a National Network route is signed, the National Network sign shall be used." -Federal Highway…

"The National Network Prohibition sign may be used to identify routes, portions of routes, and ramps where trucks are prohibited. The sign may also be used to mark the ends of designated routes."-Federal Highway Administration, 2007

National Network Prohibition, Black and White

"The National Network Prohibition sign may be used to identify routes, portions of routes, and ramps…

"The National Network Prohibition sign may be used to identify routes, portions of routes, and ramps where trucks are prohibited. The sign may also be used to mark the ends of designated routes."-Federal Highway Administration, 2007

National Network Prohibition, Black and White

"The National Network Prohibition sign may be used to identify routes, portions of routes, and ramps…

The workmanship of the white marble columns, and of the large squared stones which are joined without cement, shows a cultivated skill.

Elevation of Platform at Pasargadæ

The workmanship of the white marble columns, and of the large squared stones which are joined without…

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure hose leading to a contents gauge (also called pressure gauge). The port for this hose leaves the first-stage upstream of all pressure-reducing valves. The contents gauge is a pressure gauge measuring the gas pressure in the diving cylinder so the diver knows how much gas remains in the cylinder. It is also known as submersible pressure gauge or SPG.

Pressure Variation Indicator

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure…

"The contours are sketched lightly in pencil and the hachures drawn perpendicular to them, starting at the summit and making heavier strokes for steeper slopes. The rows of strokes should touch the pencil line, to avoid white streaks along the contours." —French, 1911

Shoreline Contour Map Method of Execution

"The contours are sketched lightly in pencil and the hachures drawn perpendicular to them, starting…

A tea strainer is a type of strainer that is placed over or in a teacup to catch tea leaves.

Tea Strainer

A tea strainer is a type of strainer that is placed over or in a teacup to catch tea leaves.

This rake head is an agricultural tool consisting of a toothed bar fixed transversely to a handle, and used to collect leaves, hay, grass, etc..., sometimes used in gardening

Rake Head

This rake head is an agricultural tool consisting of a toothed bar fixed transversely to a handle, and…

An illustration showing the application of a jet condenser to pump a well. The steam enters the engine and leaves as exhaust. The exhaust steam is cooled by the well water in the jet condenser, then gets pumped into a separator. One stream exits into the sewer, and the remainder is pumped to the boiler as liquid and recycled into the condenser as steam.

Application of Steam Engine Jet Condenser used to Pump Well Water

An illustration showing the application of a jet condenser to pump a well. The steam enters the engine…

A Mediterranean fig, Ficus Carica, with a branch with leaves and buds. The fruit, numbered 3, is sliced lengthwise showing the seeds.

Ficus Carica Fig with Fruit and Leaves

A Mediterranean fig, Ficus Carica, with a branch with leaves and buds. The fruit, numbered 3, is sliced…

A branch from a black mulberry with fruits and leaves. The plant have both male and female flowers are used for reproduction by pollination.

Black Mulberry Branch with Fruits and Leaves

A branch from a black mulberry with fruits and leaves. The plant have both male and female flowers are…

A cigarette is a product consumed through smoking and manufactured out of cured and finely cut tobacco leaves and reconstituted tobacco, combined with other additives then rolled or stuffed into a paper-wrapped cylinder

Cigarette Packer

A cigarette is a product consumed through smoking and manufactured out of cured and finely cut tobacco…

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant is an aquatic plant with oblong leaf blades measuring up to 65 cm. The leaves of the plant lay beneath the water and are purely skeletal, with not tissue. The flowers grow above the water's surface.

Lace-leaf Plant

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant…

An illustration of a Madagascan drinking cup made from a leaf of the "Traveller's Tree".

Drinking Cup

An illustration of a Madagascan drinking cup made from a leaf of the "Traveller's Tree".

A usually automatic machine for washing clothes and linens.

Early Washing Machine

A usually automatic machine for washing clothes and linens.

"Polygonaceae, a natural order of Dicotyledons, containing 30 genera with about 700 species, chiefly in the north temperate zone, and represented in Great Britain by three genera. They are mostly herbs characterized by the union of the stipules into a sheath or ocrea, which protects the younger leaves in the bud stage." —Encyclopaedia Britannica Company, 1910

Stem and Leaf Part of Polygonum

"Polygonaceae, a natural order of Dicotyledons, containing 30 genera with about 700 species, chiefly…

"Polygonaceae is mainly a north temperate order. A few genera are tropical which has 125 species restricted to tropical and sub—tropical America. Polygonum has a very wide distribution to the mountains of tropical Africa and South Africa, through the highlands of tropical Asia to Australia, and in America as far south as Chile. Most of the genera have a limited distribution. Of the three which are native in the British Isles." —Encyclopaedia Britannica Company, 1910

Flowers and Leaves of Common Dock

"Polygonaceae is mainly a north temperate order. A few genera are tropical which has 125 species restricted…

"Polypodium widely distributed throughout the world, but specially developed in the tropics. The species differ greatly in size and general appearance and in the character of the frond; the sori or groups of spore—cases (sporangia) are borne on the back of the leaf, are globose and naked, that is, are not covered with a membrane (indusium)." —Encyclopaedia Britannica Company, 1910

Common Polypody Leaf with Sori

"Polypodium widely distributed throughout the world, but specially developed in the tropics. The species…

A Common Polypody, or Polypodium vulgare, leaf and root. The fern is commonly found on walls, river banks, and trees. On the leaf, the common polypody will develop a few spots, called sori, over time.

Leaf and Root of Common Polypody

A Common Polypody, or Polypodium vulgare, leaf and root. The fern is commonly found on walls, river…

A usually automatic machine for washing clothes and linens.

Washing Machine

A usually automatic machine for washing clothes and linens.

A long-handled implement with a row of projecting teeth at its head, used especially to gather leaves or to loosen or smooth earth.

Tool Combination Rake

A long-handled implement with a row of projecting teeth at its head, used especially to gather leaves…

A long-handled tool with a row of teeth at its head; used to move leaves or loosen soil

Multipurpose Rake

A long-handled tool with a row of teeth at its head; used to move leaves or loosen soil

A steel bucket filled with sand which is used to put out fires. Typically, fire buckets are painted bright red and have the word 'Fire' stencilled on them in white lettering. They are placed in prominent positions in rooms or corridors.

Fire Bucket

A steel bucket filled with sand which is used to put out fires. Typically, fire buckets are painted…

Large willow tree of Eurasia and North Africa having greyish canescent leaves and grey bark

White Willow

Large willow tree of Eurasia and North Africa having greyish canescent leaves and grey bark

Leaves of the willow tree.

Willow Leaves

Leaves of the willow tree.

This plant is thought to have originated in Europe, featuring rich pink and white flowers.

Saponaria Officinalis

This plant is thought to have originated in Europe, featuring rich pink and white flowers.

This is a tropical fruiting tree.

White Sapote

This is a tropical fruiting tree.

This tree is known for having brittle wood and pleasantly smelling leaves.

Sassafras Tree

This tree is known for having brittle wood and pleasantly smelling leaves.

This perennial features white flowers, and thin racemes.

Saururus Cernuus

This perennial features white flowers, and thin racemes.

This plant belongs to the scillia showing leaves that are usually pink and blue.

Bifolia Scilla

This plant belongs to the scillia showing leaves that are usually pink and blue.

This plant features rich and showy yellow flowers.

Wall Pepper

This plant features rich and showy yellow flowers.

This plants leaves seem to form similarly to that of a rose.

Sedum Sieboldii

This plants leaves seem to form similarly to that of a rose.

This perennial is known for its white cone shaped flowers.

Shortia Galacifolia

This perennial is known for its white cone shaped flowers.

A vine belonging to the smilarcaceae family, their leaves are gray and white.

Smilax Glauca

A vine belonging to the smilarcaceae family, their leaves are gray and white.

A genus famous for having pinnate leaves and colorful flowers.

Viciifolia Sophora

A genus famous for having pinnate leaves and colorful flowers.

A roundheaded tree with dark green leaves, bearing rich white flowers.

Sophora Japonica

A roundheaded tree with dark green leaves, bearing rich white flowers.

A native plant to Asia, featuring edible green leaves.

Asian Spinach

A native plant to Asia, featuring edible green leaves.

Shrub with white flowers that blossom in the spring.

Spiraea Prunifolia

Shrub with white flowers that blossom in the spring.

This is a plant belonging to the Rosaceaea genus, featuring wavy margined leaves.

Stephanandra Incisaa

This is a plant belonging to the Rosaceaea genus, featuring wavy margined leaves.

This plant is also known as the madasgascar jasmine, which feature dark leaves; sometimes waxy.

Stephanotis Floribunda

This plant is also known as the madasgascar jasmine, which feature dark leaves; sometimes waxy.

Plant featuring a basal rosette of leaves.

Streptocarpus Kewensis

Plant featuring a basal rosette of leaves.

This is a northern plant of northern China, featuring oval leaves and a rose type flowers.

Syringa Villosa

This is a northern plant of northern China, featuring oval leaves and a rose type flowers.

This persian lilac is a shrub featuring lance-like leaves.

Syringa Persica

This persian lilac is a shrub featuring lance-like leaves.

A large shrub usually bearing white flowers.

Syringa Japonica

A large shrub usually bearing white flowers.

This plant bears leaves that are useful in the production of tea beverages.

Tea Plant

This plant bears leaves that are useful in the production of tea beverages.

American tree with heavily dark leaves.

Tilia Americana

American tree with heavily dark leaves.

A tree which is rarely seen in Florida, bearing glossy leaves.

Torreya Taxifolia

A tree which is rarely seen in Florida, bearing glossy leaves.

This is a white clover, bearing pink flowers and glossy leaves. This flora is common the US.

Trifolium Repens

This is a white clover, bearing pink flowers and glossy leaves. This flora is common the US.

The White Trillium is a perennial belonging to the lily family.

Trillium Grandiflorum

The White Trillium is a perennial belonging to the lily family.