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Blowout Grass (Redfieldia flexuosa) is a grass found on sand dunes. "a, spikelet; b, flower; c, glumes." -Whitney, 1911

Blowout Grass

Blowout Grass (Redfieldia flexuosa) is a grass found on sand dunes. "a, spikelet; b, flower; c,…

Haliphysena Tumanvitzii; living specimen showing the wineglass-shaped shell built up of sand-grains and sponge-spicules, and the abundant protoplasm p, issuing from the mouth of the shell and spreading partly over its projecting constituents.

Haliphysena Tumanvitzii

Haliphysena Tumanvitzii; living specimen showing the wineglass-shaped shell built up of sand-grains…

Corystes cassivelaunus, the masked crab, helmet crab or sand crab, is a burrowing crab of the North Atlantic and North Sea from Portugal to Norway, which also occurs in the Mediterranean Sea. It may grow up to 4 cm long (carapace length). The name "masked crab" derives from the patterns on the carapace which resemble a human face, in a similar manner to heikegani.

Masked Crab

Corystes cassivelaunus, the masked crab, helmet crab or sand crab, is a burrowing crab of the North…

Annual Honesty (Lunaria annua) is a tall (height about 1 m), hairy-stemmed biennial plant found throughout Europe, North America, and parts of Asia. It has large, pointed oval leaves with marked serrations. The common name "Honesty" arose in the 16th century, and it may be due to the translucent seed-pods which are like flattened pea-pods and borne on the plant through winter. In South-East Asia and elsewhere, it is called the Money Plant, because its seed pods have the appearance of silver coins. In the United States it may also be known as "Silver Dollars," also because of the seed pods.

Annual Honesty

Annual Honesty (Lunaria annua) is a tall (height about 1 m), hairy-stemmed biennial plant found throughout…

"Ruedorf's sand-bath, a simple form of sand-bath in which the temperature can be regulated by raising or lowering an S-shaped burner." -Whitney, 1911

Ruedorf's Sand Bath

"Ruedorf's sand-bath, a simple form of sand-bath in which the temperature can be regulated by raising…

"Belt-sander. a, standard, supporting machine; b, work-table; c, fabric coated with sand, in the form of a continuous belt; d, tension-controlling mechanism; e, power connection; f, samples of finished work." -Whitney, 1911

Belt Sander

"Belt-sander. a, standard, supporting machine; b, work-table; c, fabric coated with sand, in the form…

"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving drum coated with sand; d, work-table for presenting work to disk; e, power connection." -Whitney, 1911

Disk and Drum Sander

"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving…

"Sand-vine (Gonolobus lavis). a, flower; b, crown-lobe tipped by a 2-cleft awn; c, stamen-tube; d, follicle or seed-pod." -Whitney, 1911

Sand Vine

"Sand-vine (Gonolobus lavis). a, flower; b, crown-lobe tipped by a 2-cleft awn; c, stamen-tube; d, follicle…

Edwardsia beautempsi is a species of sea anemone that lives freely in tubes in the sand, unattached.

Sea Anemone

Edwardsia beautempsi is a species of sea anemone that lives freely in tubes in the sand, unattached.

"Encope emarginata. Encope is a genus of irregular clypeastroid sea-urchins, of the family Mellitidae." -Whitney, 1911

Encope

"Encope emarginata. Encope is a genus of irregular clypeastroid sea-urchins, of the family Mellitidae."…

The Javelin Sand Boa (Eryx jaculus) is a snake in the Boidae family of boas.

Javelin Sand Boa

The Javelin Sand Boa (Eryx jaculus) is a snake in the Boidae family of boas.

The common sand dollar or flat sea urchin. Upper surface with the spines partly removed.

Sand Dollar

The common sand dollar or flat sea urchin. Upper surface with the spines partly removed.

Diagrammatic section of an off-shore bar and the barachois or lagoon enclosed by it.

Off-shore Bar

Diagrammatic section of an off-shore bar and the barachois or lagoon enclosed by it.

"A horse- or steam-power machine for digging, moving, or transporting loose gravel, sand, or soil." -Whitney, 1911

Excavator

"A horse- or steam-power machine for digging, moving, or transporting loose gravel, sand, or soil."…

Diagram showing the relationship of the black sapropelitic shales, the oil producers, to the limestone beds on the left and the sands on the right.

Limestone Beds

Diagram showing the relationship of the black sapropelitic shales, the oil producers, to the limestone…

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…

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Ripple Mark in Lop-Nor Desert, Turkestan

A type of ripple mark in the Lop-Nor Desert in Turkestan.

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Dune with Eolian Cross-bedding

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Dune with Eolian Cross-bedding

Cross-section of a dune near Ostend, Belgium showing Eolian cross-bedding.

Thin section of quartz sandstone shown under the microscope. The original rounded quartz grains are surrounded by new quartz, forming quartzite.

Quartz Sandstone

Thin section of quartz sandstone shown under the microscope. The original rounded quartz grains are…

Cross-bedding in Sylvania sandstone.

Sandstone with Cross-bedding

Cross-bedding in Sylvania sandstone.

Cross-bedding of the Eolian type in the Orange sand or La Fayette Formation, Mississippi Central Railroad, Oxford, Mississippi.

Eolian Cross-bedding

Cross-bedding of the Eolian type in the Orange sand or La Fayette Formation, Mississippi Central Railroad,…

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St. Louis.

Eolian Cross-bedding

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St.…

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St. Louis.

Eolian Cross-bedding

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St.…

Section of a small delta in a lake, showing the fore-sets of pebbles and sand, the bottom-sets of clay, and the top-sets of coarse sand and pebbles.

Delta

Section of a small delta in a lake, showing the fore-sets of pebbles and sand, the bottom-sets of clay,…

Diagrams showing the origins of eskers. A) A tunnel under the ice, nearly filled with sand and gravel by the subglacial stream which built up its bed to the level of the outlet. B) The same deposit after the ice melting of the supporting ice walls. Slumping has produced the characteristic steep side slopes.

Origin of Eskers

Diagrams showing the origins of eskers. A) A tunnel under the ice, nearly filled with sand and gravel…

Diagram illustrating the forms of ripple marks and of the reverse impressions of the same.

Ripple Marks

Diagram illustrating the forms of ripple marks and of the reverse impressions of the same.

Section to show normal progressive overlap of the formations and their shoreward change from muds to sands and pebbles.

Progressive Overlap

Section to show normal progressive overlap of the formations and their shoreward change from muds to…

"A shallow frame of wood or iron used in foundries to contain the sand and patterns employed in molding and casting." -Whitney, 1911

Two-Part Flask

"A shallow frame of wood or iron used in foundries to contain the sand and patterns employed in molding…

Diagram of an ancient fissure in fine Upper Silurian limestone, etc., filled with rounded grains of sand, secondarily enlarged, and including fragments of the wall rock.

Fissure in Limestone

Diagram of an ancient fissure in fine Upper Silurian limestone, etc., filled with rounded grains of…

Fragment of the wall rock (limestone) included in an ancient sandstone dike; the rock is shattered and the sand (shaded) injected into the fissures.

Limestone Fragment

Fragment of the wall rock (limestone) included in an ancient sandstone dike; the rock is shattered and…

Shells of a pelecypod found in the elevated sand beds of northeastern New England, New Brunswick, etc. This species still lives in the modern ocean.

Pelecypod

Shells of a pelecypod found in the elevated sand beds of northeastern New England, New Brunswick, etc.…

The Pin-Tailed Sandgrouse (Pterocles alchata) is a bird in the Columbiformes order.

Pin-Tailed Sandgrouse

The Pin-Tailed Sandgrouse (Pterocles alchata) is a bird in the Columbiformes order.

The Sand Fiddler Crab (Uca pugilator) is a small crustacean in the Ocypodidae family of ghost and fiddler crabs. It was once known as the synonym Gelasimus pugilator.

Sand Fiddler Crab

The Sand Fiddler Crab (Uca pugilator) is a small crustacean in the Ocypodidae family of ghost and fiddler…

"Aegialitis hiaticola, the Ringed Plover, Sand-Lark, or Stone-runner, mistakenly called the "Ring-Dotterel" which is common on the British coasts and even inland, extends from Smith's Sound eastward to Bering Strait, and migrates to South Africa, North India, or accidentally, Australia. It breeds as far south as the Atlantic Islands, North Africa, and Turkestan. The plumage is light brown, with white forehead, post-ocular streak, upper neck, alar bar, outer rectrices, and under surface; the crown, lores, cheeks, and a collar-broader in front-being black. The young lack the black crown." A. H. Evans, 1900

Ringed Plover

"Aegialitis hiaticola, the Ringed Plover, Sand-Lark, or Stone-runner, mistakenly called the "Ring-Dotterel"…

"Syrrhaptes paradoxus, Sand-Ground, are true desert birds, affording excellent instances of protective coloration in their buff or brownish tints, slightly varied with grey, black, orange, and white." A. H. Evans, 1900

Pallas's Sand Grouse

"Syrrhaptes paradoxus, Sand-Ground, are true desert birds, affording excellent instances of protective…

"And he looked this way and that way, and when he saw that there was no man, he slew the Egyptian, and hid him in the sand." Exodus 2:12 KJV

Moses Slaying the Egyptian

"And he looked this way and that way, and when he saw that there was no man, he slew the Egyptian, and…

Beach Grass (Calamagrostis arenaria or Ammophila arundinacea), also known as Seasand Reed and Mat Grass, is found almost exclusively on the first line of coastal sand dunes; their extensive systems of creeping underground stems or rhizomes allow them to thrive under conditions of shifting sands and high winds. It grows from two to three feet high with stout roots running from twenty or thirty feet long. The leaves are wide, rather short and of a sea-green color.

Beach Grass

Beach Grass (Calamagrostis arenaria or Ammophila arundinacea), also known as Seasand Reed and Mat Grass,…

In geology and related fields, a stratum (plural: strata) is a layer of rock or soil with internally consistent characteristics that distinguishes it from contiguous layers. Each layer is generally one of a number of parallel layers that lie one upon another, laid down by natural forces. They may extend over hundreds of thousands of square kilometers of the Earth's surface. Strata are typically seen as bands of different colored or differently structured material. Individual bands may vary in thickness from a few millimeters to a kilometer or more. Each band represents a specific mode of deposition -- river silt, beach sand, coal swamp, sand dune, lava bed, etc. Eozoic strata pertains to rocks or strata older that the Paleozoic, in many of which the eozoön has been found.

Eozoic Strata

In geology and related fields, a stratum (plural: strata) is a layer of rock or soil with internally…

Difflugia one of several genera of amoebozoa that produce shells or tests from granules of sand. These are swallowed by the cell and during the process of budding or fission they pass into the daughter, where they are joined by organic cement. The test has a single terminal opening. Difflugia are particularly common in marshes. The Difflugia use pseudopods to move around. It is a heterotroph and it engulfs its food.

Amoeba

Difflugia one of several genera of amoebozoa that produce shells or tests from granules of sand. These…

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are parasitic upon fishes. Gammarus is an amphipod crustacean genus in the family Gammaridae.

Marine Isopod

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are…

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants, small invertebrates. It is preyed upon by shrimp, sea anemones and several fish species. Females of some species of skeleton shrimp apparently kill the males after mating using a poisonous claw.

Marine Isopod

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants,…

The Cape Mole Rat (Georychus capensis) is a rodent in the Bathyergidae family of blesmols and was also known as the Cape Sand-mole.

Cape Mole Rat

The Cape Mole Rat (Georychus capensis) is a rodent in the Bathyergidae family of blesmols and was also…

Reynard the Fox and Isegrim the wolf fight each other. Reynard kicks dirt and sand up in Isegrim's eyes.

Reynard the Fox: Fighting the Wolf

Reynard the Fox and Isegrim the wolf fight each other. Reynard kicks dirt and sand up in Isegrim's eyes.

"Latifolia, perennial: whole plant viscid-pubescent, prostrate: lvs. thick, ovate, orbicular or reniform, obtuse, stalked: fls. fragrant, 1/2 - 3/4 in. long, lemon yellow. June, July" L.H. Bailey, 1917

Coastal Sand Verbena

"Latifolia, perennial: whole plant viscid-pubescent, prostrate: lvs. thick, ovate, orbicular or reniform,…

A diagram of a 100 ton sand and gravel storage and handling plant. "Capacity of bucket elevator is 40 tons per hour and the belt conveyor 25 tons per hour. The swivel loading spout in combination with the fixed bucket elevator will distribute material over a considerable area." -Meese, 1913

100 Ton Sand and Gravel Storage and Handling Plant

A diagram of a 100 ton sand and gravel storage and handling plant. "Capacity of bucket elevator is 40…

"Sectional elevation showing M. & G. Quadrant Bin Gates as used for all the bunkers in the Gravel Plant." -Meese, 1913

Quadrant Bin Gates

"Sectional elevation showing M. & G. Quadrant Bin Gates as used for all the bunkers in the Gravel Plant."…

"Drawing showing completed 50-foot diameter sand or tailings wheel." -Meese, 1913

Tailings Wheel

"Drawing showing completed 50-foot diameter sand or tailings wheel." -Meese, 1913

Sharpen the the pencil by removing the wood with a penknife and rubbing the lead on sand paper. The wedge or flat point will remain sharper than the conical point.

Wedge Point of Pencil

Sharpen the the pencil by removing the wood with a penknife and rubbing the lead on sand paper. The…

This cart fender is the part of an automobile that frames the wheel. The primary purpose of the fender is to prevent sand, mud, rocks, and other forms of debris from being thrown into the air by the rotating tire.

Cart use Fender

This cart fender is the part of an automobile that frames the wheel. The primary purpose of the fender…

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary purpose is to prevent sand, mud, rocks, and liquids from being thrown into the air by the rotating tire. Fenders are typically rigid and can be damaged by contact with the road surface. Instead flexible mud flaps are used close to the ground where contact may be possible.

Car Fender

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames…

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel of a motor vehicle, a pipe connecting the interior of the hopper to the storage chamber, an auger disposed within the pipe for transferring the sand from the storage tank to the hopper, and a motor for rotating auger.

Track Sanding Apparatus

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel…

Conventional sand topography symbol commonly used in map drawing and drafting.

Sand Relief or Terrain Topography Symbol

Conventional sand topography symbol commonly used in map drawing and drafting.

A map drawing and drafting topography symbol illustrating sand dune.

Sand Dunes Relief or Terrain Topography Symbol

A map drawing and drafting topography symbol illustrating sand dune.

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire.

Car Fender

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames…

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting the second stop. At the very top of the chamber, sand is fed into the system. The lever is pulled to make the air and sand mixture go through the flexible hose. Sand blasting is used to clean metal.

Metal Cleaning using Sand Blast

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting…

Any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids.

General Purpose Filter

Any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid…