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The loon is a diving bird that finds its food under the water. It will dip its bill into the water and perhaps its whole body to find prey.

Loon

The loon is a diving bird that finds its food under the water. It will dip its bill into the water and…

Rubber suit worn over a diver's body, doesn't include helmet.

Diving-dress

Rubber suit worn over a diver's body, doesn't include helmet.

Diving birds, such as the grebe, have webbed (or lobed) feet and are expert in swimming and diving.

Grebe

Diving birds, such as the grebe, have webbed (or lobed) feet and are expert in swimming and diving.

The loon is a diving bird. Its peculiar cry, sometimes resembling a hysterical laugh, has given rise to the expression, "crazy as a loon."

Loon

The loon is a diving bird. Its peculiar cry, sometimes resembling a hysterical laugh, has given rise…

Depicts people relaxing on a lake, canoeing, powerboting, and diving.

Lake Recreation

Depicts people relaxing on a lake, canoeing, powerboting, and diving.

"The <em>Dyticus marginalis</em>, a European species very common in ponds, attains a length of more than an inch." &mdash; Goodrich, 1859

Great Diving Beetle Adult and Larvae

"The Dyticus marginalis, a European species very common in ponds, attains a length of more…

"The <em>Dyticus marginalis</em>, a European species very common in ponds, attains a length of more than an inch." &mdash; Goodrich, 1859

Great Diving Beetle Female

"The Dyticus marginalis, a European species very common in ponds, attains a length of more…

"Another remarkable member of the Araneidae is the Diving Spider, <em>Argyroneta aquatica</em>, which weaves itself a curious little bell-shaped dwelling at the bottom of the water, to which it retires to devor its prey." &mdash; Goodrich, 1859

Spider, diving

"Another remarkable member of the Araneidae is the Diving Spider, Argyroneta aquatica, which…

"Diving Apparatuses are contrivances by means of which divers are enabled to remain a considerable time under water. As the most skillful divers are unable to remain under water more than two or three minutes without artificial respiration, means have been devised by hermetically sealed helmets, diving bells, and diving dresses, so that they can stay for several hours at a time at considerable depths of water and at the same time carry on their work."&mdash;(Charles Leonard-Stuart, 1911)

Diving Dress

"Diving Apparatuses are contrivances by means of which divers are enabled to remain a considerable time…

A marine diving bird, allied to the auk, and having a short, thick beak like that of the parrot.

Puffin

A marine diving bird, allied to the auk, and having a short, thick beak like that of the parrot.

Freshwater diving birds, some of which visit the sea when migrating and in the winter.

Horned Grebe

Freshwater diving birds, some of which visit the sea when migrating and in the winter.

A bell shaped chamber filled with compressed air to allow divers to surface underwater.

Diving Bell

A bell shaped chamber filled with compressed air to allow divers to surface underwater.

A dolphin diving under water.

Dolphin

A dolphin diving under water.

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Great Diving Beetle

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Great Diving Beetle

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

The pupa of the Dytiscus genus.

Great Diving Beetle

The pupa of the Dytiscus genus.

"The diving dress envelops the whole body of the diver, the upper portion a being the "helmet," the intermediate portion b the "breast-plate," and the lower portion c the "dress." The hose by which the air is supplied is shown at d, and e is the "life" or "signal" line, which is attached to the diver's waist, and by which he makes signals and is hauled to the surface. The water-proof material of which the dress is made is very generally sheet india-rubber covered on both sides with tanned twill to protect the india-rubber from injury." &mdash; Encyclopedia Britannica, 1893

Diving Dress

"The diving dress envelops the whole body of the diver, the upper portion a being the "helmet," the…

"A, Dytiscus Marginalis, or great Water-beetle; B, larva." &mdash; Chambers' Encyclopedia, 1875

Great Diving Beetle

"A, Dytiscus Marginalis, or great Water-beetle; B, larva." — Chambers' Encyclopedia, 1875

"The large iron vessel does not allow air to escape once it is lowered into a body of water for underwater work. The hose attached to the top allows for new air to enter the bell." &mdash;Quackenbos 1859

Diving Bell

"The large iron vessel does not allow air to escape once it is lowered into a body of water for underwater…

The double-crested cormorant, a diving water bird.

Cormorant

The double-crested cormorant, a diving water bird.

"The first sensation in descending under water in a suit of armor is the sudden, bursting roar in the ears, cause by the air driven into the helmet from the air-pump. The flexible air-hose has to be strong enough to bear the pressure of twenty-five to fifth pounds to the square inch." -Lupton

Early Scuba diving

"The first sensation in descending under water in a suit of armor is the sudden, bursting roar in the…

"The name for the marine diving birds of the genus Fratercula. The common puffin is a native of the arctic and northern temperate regions. It can fly with great rapidity when once upon the wing." -Marshall

Common Puffin

"The name for the marine diving birds of the genus Fratercula. The common puffin is a native of the…

Two striped muscle fibers of the hyoglossus of frog. Labels: a, Nerve end plate; b, nerve fibers leaving the end plate; c, nerve fibers, terminating after diving into branches d, a nucleus in which two nerve fibers anastomose.

Striped Muscle Fibers of a Frog

Two striped muscle fibers of the hyoglossus of frog. Labels: a, Nerve end plate; b, nerve fibers leaving…

The diving dress in a rubber suit with a metal helmet, having pieces of glass in front to enable to diver to see.

Diving-dress and diving-helmet

The diving dress in a rubber suit with a metal helmet, having pieces of glass in front to enable to…

Predaceous diving beetles is a family of water beetles. They are about 25 mm (one inch) long on average, though there is much variation between species. Dytiscus latissimus, the largest, can grow up to 45 mm long. Most are dark brown, blackish or dark olive in color with golden highlights in some subfamilies. They have short, but sharp mandibles. Immediately upon biting they deliver digestive enzymes. The larvae are commonly known as water tigers. The family has not been comprehensively cataloged since 1920, but is estimated to include about 4,000 species in over 160 genera.

Predaceous Beetle

Predaceous diving beetles is a family of water beetles. They are about 25 mm (one inch) long on average,…

Predaceous diving beetles is a family of water beetles. They are about 25 mm (one inch) long on average, though there is much variation between species. Dytiscus latissimus, the largest, can grow up to 45 mm long. Most are dark brown, blackish or dark olive in color with golden highlights in some subfamilies. They have short, but sharp mandibles. Immediately upon biting they deliver digestive enzymes. The larvae are commonly known as water tigers. The family has not been comprehensively cataloged since 1920, but is estimated to include about 4,000 species in over 160 genera.

Predaceous Beetle

Predaceous diving beetles is a family of water beetles. They are about 25 mm (one inch) long on average,…

A standard diving dress consists of a metallic (copper, brass or bronze) diving helmet, an airline or hose from a surface supplied diving air pump, a canvas diving suit, diving knife and boots. An important part of the equipment is the addition of lead weights, generally on the chest, back and boots, to counteract the buoyancy of the helmet and diving suit.

Standard Diving Dress

A standard diving dress consists of a metallic (copper, brass or bronze) diving helmet, an airline or…

A front view of a diving helmet. A, Helmet; B, Breastplate; F, Emergency cock; G, Glasses in frame; H, Metal screws and bands; I, Metal tabs; J, Hooks for keeping weight ropes into position; and L, Eyes to which air pipe and life line are secured.

Diving Helmet (Front)

A front view of a diving helmet. A, Helmet; B, Breastplate; F, Emergency cock; G, Glasses in frame;…

A side view of a diving helmet. K, Segmental neck rings; D, Air conduits; Telephone receiver; N, transmitter; and O, contact piece to ring bell.

Diving Helmet (Side)

A side view of a diving helmet. K, Segmental neck rings; D, Air conduits; Telephone receiver; N, transmitter;…

Back view of a diving helmet.

Diving Helmet (Back)

Back view of a diving helmet.

Top view of diving helmet. C, Air inlet valve; E, Regulating outlet valve; G, Glasses in frames; L, Eyes to which air pipe and life line are secured; and P, Connection for telephone cable.

Diving Helmet (Top)

Top view of diving helmet. C, Air inlet valve; E, Regulating outlet valve; G, Glasses in frames; L,…

An illustration of communication between a diver and the surface. Q, Battery with switch and bell in case; and R, Attendant's receiver and transmitter.

Diver's Communication

An illustration of communication between a diver and the surface. Q, Battery with switch and bell in…

An illustration of a submarine electric lamp with reflector.

Submarine Electric Lamp

An illustration of a submarine electric lamp with reflector.

An illustration of a submarine electric lamp without reflector. A, Metal case containing electrical fittings; B, Glass globe and incandescent lamp; C, Stand, which also protects the globe; and D, Ring for suspending lamp.

Submarine Electric Lamp

An illustration of a submarine electric lamp without reflector. A, Metal case containing electrical…

A diving bell, also known as a wet bell, is a cable-suspended airtight chamber, open at the bottom like a moon pool structure, that is lowered underwater to operate as a base or a means of transport for a small number of divers. The pressure of the water keeps the air trapped inside the bell. They were the first type of diving chamber. Unlike a submarine the diving bell is not designed to move under the control of its occupants, nor to operate independently of its tether.

Diving Bell

A diving bell, also known as a wet bell, is a cable-suspended airtight chamber, open at the bottom like…

The adult of Dytiscus fasciventris, a species of predacious diving beetles.

Diving Beetle

The adult of Dytiscus fasciventris, a species of predacious diving beetles.

The pupa of Dytiscus marginalis, the Great Diving Beetle.

Great Diving Beetle

The pupa of Dytiscus marginalis, the Great Diving Beetle.

The Horned Grebe (Podiceps cornutus) is a freshwater diving bird in the Podicipedidae family of grebes.

Horned Grebe

The Horned Grebe (Podiceps cornutus) is a freshwater diving bird in the Podicipedidae family of grebes.

This sign indicates that diving is permitted nearby.

Diving, Black and White

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Color

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Outline

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Silhouette

This sign indicates that diving is permitted nearby.

This sign indicates that scuba diving is available nearby.

Scuba Diving, Black and White

This sign indicates that scuba diving is available nearby.

This sign indicates that scuba diving is available nearby.

Scuba Diving, Color

This sign indicates that scuba diving is available nearby.

This sign indicates that scuba diving is available nearby.

Scuba Diving, Outline

This sign indicates that scuba diving is available nearby.

This sign indicates that scuba diving is available nearby.

Scuba Diving, Silhouette

This sign indicates that scuba diving is available nearby.

"Sectional view of diving bell and barge, employed on the River Clyde. All the appliances are worked by steam, rendering manual labour unnecessary. A is the Bell, which is raised and lowered by means of the Chain and Steam Winch B. c c are Seats within the Bell; d d, Footboards. E, Air-pipe entering the Bell at f, the air being supplied by Air-pump G driven by the Engine H. J is a Steam Crane for raising or lowering material. K K, Steam Winches for working moorings and shifting position of the barge." -Hill, 1921

Barge with Diving Bell

"Sectional view of diving bell and barge, employed on the River Clyde. All the appliances are worked…

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and narrow throughout or scarcely widened toward end, sloping gradually up to the top of the head in line with the sweep of the forehead, altogether somewhat like a goose's in shape; decidedly longer than head, 2 &1/2 inches to nearly or quite 3 in length, measured along the culmen; the nostrils reaching the middle of the bill, their fore end half-way from the upper corner to end of bill. Bill not blue, black-belted, but blackish throughout. Eyes red. Feet grayish-blue. Head and upper neck not coppery brownish-red, but dark reddish-brown, further much obscured with dusky or quite blackish about the bill and on top. Ground color of back white, very finely vermiculated with zigzag blackish bars much narrower than the intervening spaces, and tending to break up, or mostly broken up, into little chains or dots across the feathers; the resulting silvery-gray tone consequently several shades lighter than in the red-head." Elliot Coues, 1884

Canvas-back Head

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and…

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and narrow throughout or scarcely widened toward end, sloping gradually up to the top of the head in line with the sweep of the forehead, altogether somewhat like a goose's in shape; decidedly longer than head, 2 &1/2 inches to nearly or quite 3 in length, measured along the culmen; the nostrils reaching the middle of the bill, their fore end half-way from the upper corner to end of bill. Bill not blue, black-belted, but blackish throughout. Eyes red. Feet grayish-blue. Head and upper neck not coppery brownish-red, but dark reddish-brown, further much obscured with dusky or quite blackish about the bill and on top. Ground color of back white, very finely vermiculated with zigzag blackish bars much narrower than the intervening spaces, and tending to break up, or mostly broken up, into little chains or dots across the feathers; the resulting silvery-gray tone consequently several shades lighter than in the red-head." Elliot Coues, 1884

Large Canvas-backs Head

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and…

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and narrow throughout or scarcely widened toward end, sloping gradually up to the top of the head in line with the sweep of the forehead, altogether somewhat like a goose's in shape; decidedly longer than head, 2 &1/2 inches to nearly or quite 3 in length, measured along the culmen; the nostrils reaching the middle of the bill, their fore end half-way from the upper corner to end of bill. Bill not blue, black-belted, but blackish throughout. Eyes red. Feet grayish-blue. Head and upper neck not coppery brownish-red, but dark reddish-brown, further much obscured with dusky or quite blackish about the bill and on top. Ground color of back white, very finely vermiculated with zigzag blackish bars much narrower than the intervening spaces, and tending to break up, or mostly broken up, into little chains or dots across the feathers; the resulting silvery-gray tone consequently several shades lighter than in the red-head." Elliot Coues, 1884

Canvas-backs

"Fuligula vallisneria. Canvas-back. Adult male: The head close-feathered. Bill high at the base and…

"Clangula albeola. Buffle-head. Butter-ball. spirit-duck. Dipper. Bill with nostrils rather behind than before its middle line. Adult male: Head particularly puffy with much lengthened feathers of lateral and and hind parts, splendidly various with purple-violet and green iridescence; a large snowy patch on each side behind eye, blending on nape with its fellow. Bill dull bluish with dusky nail and base. Eyes brown. Feet pale flesh-color, with blackish claws. Upper parts at large black, fading to grayish-white posteriorly. Lower neck all around, under parts at large, scapulars in part, nearly all the wing-coverts, and most of the secondaries, white. Outer scapulars white, edged with black; inner secondaries velvet-black; sides and sometimes across lower belly shaded with dusky; lining of wings mixed dusky and white. Female much smaller than male; head scarcely puffy, but a thin compressed nuchal elongation of the feathers; dusky gray, with trace at least of the white space of the male, and common a white touch under eye. Bill dusky; feet livid bluish-gray, with dusky webs. above at large dusky-gray or blackish, with white speculum on outer webs only five or six secondaries; below white, shaded into dark along sides and across fore-breast and lower belly." Elliot Coues, 1884

Buffleheads

"Clangula albeola. Buffle-head. Butter-ball. spirit-duck. Dipper. Bill with nostrils rather behind than…

"Oidemia americana. American Black Scoter. Sea Coot. Adult male: Plumage entirely black, less glossy and jetty below than above, grayish on the inner webs of the quills. Iris brown. Feet blackish. Young male resembling the female. Female: Sooty-brown, paler below, becoming grayish-white on belly, there dusky-speckled, on sides and flanks dusky-waved; throat and sides of head mostly continuous whitish, not in special spots; bill blackish, not bulging; feet livid olivaceous with black webs." Elliot Coues, 1884

Black Scoter

"Oidemia americana. American Black Scoter. Sea Coot. Adult male: Plumage entirely black, less glossy…

"Oidemia perspicillata. Surf Duck. Sea Coot. Adult male: Bill as above, singularly variegated in color, mostly white in pinkish, and orange, with a great round or squarish black spot on side near base; iris pale yellow; feet orange, with dusky webs. Plumage glossy black, duller below; no white on wings, but a triangular white patch on forehead, pointing forward, reaching to or beyond opposite eye, and another on nape, pointing downward. Young male resembles female, before the bill acquires distinctive shape and color. Female blackish, not tumid, feathers of culmen restricted, not reaching opposite nostrils; feet dark, tinged with reddish, the webs blackish. Plumage sooty-brown, below silvery-gray; side of head with much whitish, chiefly in two patches, loral and auricular; no frontal or nuchal white." Elliot Coues, 1884

Surf Duck

"Oidemia perspicillata. Surf Duck. Sea Coot. Adult male: Bill as above, singularly variegated in color,…

"Oidemia perspicillata trowbridgii. Trowbridge's Surf Duck, With the bill longer, exceeding the head, and o slightly different shape; feathers falling short of nostrils; gape 2.75; white frontal patch small, its posterior border anterior to a line between eyes, instead of reaching or passing beyond this." Elliot Coues, 1884

Trowbridge's Surf Duck

"Oidemia perspicillata trowbridgii. Trowbridge's Surf Duck, With the bill longer, exceeding the head,…

"Mergus merganser. Merganser. Goosander. Nostrils near middle of bill. Frontal feathers extending acutely on culmen about half way from those on side of bill to nostrils; loral feathers sweeping in nearly vertical line across side of base of upper mandible, about opposite those on side of lower mandible. Head scarcely crested, merely a line of little lengthened feathers along occiput and nape, better developed, however, in female than in male. Adult male: Bill and feet vermilion-red in breeding season, with black hook; iris carmine. Head and neck splendid dark green. Under parts salmon-colored, the flanks and lower belly marbled or watered with dusky. Upper parts glossy-black, fading to ashy on rump and tail; surface of wing mostly pure white, crossed by a black bar formed by bases of greater coverts. Primaries and outer secondaries black, intermediate secondaries white, inner secondaries and scapulars black and white. Female: Bill red with dusky culmen, iris yellowish, feet chrome or orange with dusky webs, crest better developed than in male; still flimsy, however long. Head and neck reddish-brown; throat white; under parts less salmon-tinted. Black parts of the male ashy-gray; scapulars without white; white of wing restricted to secondaries and greater coverts, which are black at base; smaller coverts ashy." Elliot Coues, 1884

Merganser

"Mergus merganser. Merganser. Goosander. Nostrils near middle of bill. Frontal feathers extending acutely…

"Mergus serrator. Red-breasted Merganser. Nostrils near base of bill. Frontal feathers extending obtusely on culmen, and not beyond those on sides of upper mandible; the loral sweeping forward convex beyond those on side of lower mandible. A long, thin, pointed and nuchal crest in both sexes. Adult Male: Head and neck all around splendid dark green. A white ring round neck. Under parts white, more or less salmon-tinged, the fore-breast brownish-red streaked with dusky, the sides finely waved with dusky. A white black-bordered patch of broad feathers in front of the wing. Fore-back, interscapulars, and long inner scapulars, black; middle and lower back gray waved with whitish and dusky. Surface of wing mostly white, including outer scapulars; inner secondaries edged on outer web with black, and wing crossed by two black bars at bases and just beyond ends of greater coverts. Bill carmine-red, dusky along the top; eyes carmine; feet bright red. Female: Bill and feet duller color; head grayish-chestnut; throat and under parts white, shaded with ashy-gray along sides. Upper parts plumbeous-gray, the feathers with paler edges; white of wing restricted to a patch formed by the ends of the greater coverts, and much of the outer secondaries; not divided by a black bar." Elliot Coues, 1884

Red-breasted Merganser

"Mergus serrator. Red-breasted Merganser. Nostrils near base of bill. Frontal feathers extending obtusely…

"Phalacrocorax dilophus. Double-crested Cormorant. Tail of 12 feathers. Gular sac convex behind. No colored gorget. Glossy greenish-black; feathers of the back and wings coppery-gray, black-shafted, black-edged. Adult with curly black lateral crests in the breeding season, but few if any other filamentous white ones, over the eyes and along the sides of the neck; white flank-patch not observed in any specimens examined, probable not occurring; iris green; gular sac and lores orange. Winter spec. with bill bright yellow, blackening along culmen, gular sac red anteriorly, ochrey-yellow posteriorly; legs dull black." Elliot Coues, 1884

Double-crested Cormorant

"Phalacrocorax dilophus. Double-crested Cormorant. Tail of 12 feathers. Gular sac convex behind. No…

"Larus heermanni. White-headed Gull. Bill shorter than head or tarsus, rather slender, moderately compressed, the tip rather acute; its color red in part in the adult. Folded wings reaching beyond the tail. Tail of moderate length, even, slightly emarginate in the young. Feet rather large. Tarsus equal to the middle toe and claw. General colors dark; tail mostly blackish. Adult, breeding plumage: Bill bright vermilion red, black for its terminal third, sometimes wholly red; a red ring around eye. Head white; this color gradually merging on the neck into plumbeous-ash, which extends over the whole under parts, being lighter on the abdomen and under tail-coverts than elsewhere. The back is deep plumbeous-slate, lighter on the rump. Upper tail-coverts clearly ashy. Upper surfaces of wings like the back; the primaries black; the tips of all, except the two or three outer ones, narrowly white. Tail black, narrowly tipped with white. Legs and feet reddish-black." Elliot Coues, 1884

White-headed Gull Head

"Larus heermanni. White-headed Gull. Bill shorter than head or tarsus, rather slender, moderately compressed,…

"Sterna dougalli. Roseate Tern. Paradise Tern. Bill about as long as head or foot, straight, slender, compressed, very acute; gonys longer than rami, former straight, latter concave in outline, with acute but not prominent angle between them. Wings shorter than usual, 1st primary little longer than next, all rounded. Tail exceedingly long and deeply forked, with very narrow filamentous outer feathers. Tibia slightly denuded; tarsus a little shorter than middle toe and claw. Whole form trim and elegant. Bill black, the extreme point yellowish, the base for a little distance, and inside of mouth, red. Feet bright yellowish-red; claws black. Cap lustrous black, very ample, reaching to lower border of eyes; under eyelid white, as is a streak to end of feathers on bill. Neck all around and entire under parts snowy white, tinted with lovely rose-pink. Mantle delicate pale pearly, over all the upper parts from the neck, including rump and base of tail, fading however to white on tips of tertials and inner webs of secondaries. Long tail-feathers white with a faint pearly tint. Primaries grayish-black, strongly silvered when fresh; outer web of the first blackish; inner webs of all pure white for more than half their breadth, this white stripe broadest on the first, toward the base of which it occupies the whole web, and on all of them continued to and usually around the very tips; shafts of all the quills white both sides nearly to end." Elliot Coues, 1884

Roseate Tern

"Sterna dougalli. Roseate Tern. Paradise Tern. Bill about as long as head or foot, straight, slender,…

"Sterna (T.) caspia. Caspian Tern. Imperial Tern. Bill dark vermilion red, growing and somewhat "diaphanous" toward the tip. Pileum and occipital crest glossy greenish-black, extending to below the lower level of the eyes, and occupying the termination of the feathers on the side of the mandible to the exclusion of the white; lower eyelid white, forming a noticeable spot on the greenish; a white streak along sides of upper mandible, not extending to the end of the feathers. mantle pearl-blue, the line of demarcation between it and the white rather indefinite, both on nape and rump; most of the tail-feathers, and especially the central ones, retaining a more or less pearly tint. Shafts of the primaries yellowish-white; primaries grayish-black, but, when new, so heavily silvered over as to appear of a light hoary gray, especially on their superior aspects. On the inner web of all there is a central light field; this is very narrow, even on the first primary, although it runs considerable distance, and on the others it rapidly grows less; and it has no trenchant line of division of the primaries from the darker portions of the feather. whole inner web of secondaries pure white, outer pearl-blue. Legs and feet black." Elliot Coues, 1884

Caspian Tern

"Sterna (T.) caspia. Caspian Tern. Imperial Tern. Bill dark vermilion red, growing and somewhat "diaphanous"…