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A bird with a long decorative tail.

Cape Promerops

A bird with a long decorative tail.

A beautiful bird of a rich yellow color, passing by degrees through olivaceous tints on te rump, wings, and tail, the last blotch with white. The bill is comparatively large and black.

Prothonotary Warbler

A beautiful bird of a rich yellow color, passing by degrees through olivaceous tints on te rump, wings,…

A mammal with a long tail furnished with distichous hairs towards the end, like a pen or feather.

Pentail

A mammal with a long tail furnished with distichous hairs towards the end, like a pen or feather.

"The tail being extricated." — Encyclopedia Britannica, 1893

Dragonfly

"The tail being extricated." — Encyclopedia Britannica, 1893

"The whole body extricated." — Encyclopedia Britannica, 1893

Dragonfly

"The whole body extricated." — Encyclopedia Britannica, 1893

"The perfect insect (the wings having acquired their full dimensions) resting to dry itself, preparatory to the wings being horizon tally extended." — Encyclopedia Britannica, 1893

Dragonfly

"The perfect insect (the wings having acquired their full dimensions) resting to dry itself, preparatory…

"A genus of carnivorous mammals belonging to the Viverridae or family of civets. It contains six species, all of which are found exclusively in Africa, with the exception of the common genet, which occurs also throughout the south of Europe and in Palestine, where Tristram notes it as occurring on Mount Carmel. The fur of this species is of a dark grey color, thickly spotted with black, and having a dark streak along the back, while the tail, which is nearly as long as the body, is prettily ringed with black and white." — Encyclopedia Britannica, 1893

Genet

"A genus of carnivorous mammals belonging to the Viverridae or family of civets. It contains six species,…

In the males, they have a full globular crest, and the hole under parts flaming red, the back, wings, and tail a dusky brown.

Vermilion Flycatcher

In the males, they have a full globular crest, and the hole under parts flaming red, the back, wings,…

"The ordinary tail-vice used by mechanics has not yet been largely superseded, though many ingenious arrangements have been devised for remedying its main defect." — Encyclopedia Britannica, 1893

Tail-vice

"The ordinary tail-vice used by mechanics has not yet been largely superseded, though many ingenious…

"The English parallel vice is little used except for small work." — Encyclopedia Britannica, 1893

Parallel Vice

"The English parallel vice is little used except for small work." — Encyclopedia Britannica, 1893

"Hand-vices are used in the manner implied by their name, without being attached to a bench like the foregoing." — Encyclopedia Britannica, 1893

Hand-Vice

"Hand-vices are used in the manner implied by their name, without being attached to a bench like the…

An animal about two feet long, stout body, bushy ringed tail, short limbs, pointed ears, broad face, and sharp snout. Usually washes its food before eating it.

Racoon

An animal about two feet long, stout body, bushy ringed tail, short limbs, pointed ears, broad face,…

A maggot with a rat like tail.

Rat Tailed Maggot

A maggot with a rat like tail.

A venomous serpent whose tail ends in a rattle. It rattles its tail to warn potential predators to back off.

Rattlesnake

A venomous serpent whose tail ends in a rattle. It rattles its tail to warn potential predators to back…

The rattling tail of the rattle snake.

Rattlesnake Tail

The rattling tail of the rattle snake.

A bird with black plumage with a metallic sheen, the bill and feet are ebony black, the wings pointed and the tail rounded.

Raven

A bird with black plumage with a metallic sheen, the bill and feet are ebony black, the wings pointed…

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines. It is one of the best even in normal conditions of working, and the mode of regulation introduced is decidedly superior to that in most reaction turbines; it might almost be said to be the only mode of regulation which satisfies the conditions of efficient working, and it has been adopted in a modified form in the Leffel turbine, which is now largely used in america. The turbine has suction pipes, which permit the turbine to be placed at any height less than 30 feet above the tail-water level. The water enters the turbine by cast-iron supply pipes at A, and is discharged through two suction pipes S. The water on entering the case distributes itself through a rectangular supply chamber SC, from which it finds its way equally to the four guide-blade passages G. In these passages it acquires a velocity about equal to that due to half the fall, and is directed into the wheel at an angle of about 10 or 12 degrees with the tangent to its circumference. The wheel W receives the water in equal proportions from each guide-blade passage." — Encyclopedia Britannica, 1893

Reaction Turbine

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines.…

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines. It is one of the best even in normal conditions of working, and the mode of regulation introduced is decidedly superior to that in most reaction turbines; it might almost be said to be the only mode of regulation which satisfies the conditions of efficient working, and it has been adopted in a modified form in the Leffel turbine, which is now largely used in america. The turbine has suction pipes, which permit the turbine to be placed at any height less than 30 feet above the tail-water level. The water enters the turbine by cast-iron supply pipes at A, and is discharged through two suction pipes S. The water on entering the case distributes itself through a rectangular supply chamber SC, from which it finds its way equally to the four guide-blade passages G. In these passages it acquires a velocity about equal to that due to half the fall, and is directed into the wheel at an angle of about 10 or 12 degrees with the tangent to its circumference. The wheel W receives the water in equal proportions from each guide-blade passage." — Encyclopedia Britannica, 1893

Reaction Turbine

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines.…

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines. It is one of the best even in normal conditions of working, and the mode of regulation introduced is decidedly superior to that in most reaction turbines; it might almost be said to be the only mode of regulation which satisfies the conditions of efficient working, and it has been adopted in a modified form in the Leffel turbine, which is now largely used in america. The turbine has suction pipes, which permit the turbine to be placed at any height less than 30 feet above the tail-water level. The water enters the turbine by cast-iron supply pipes at A, and is discharged through two suction pipes S. The water on entering the case distributes itself through a rectangular supply chamber SC, from which it finds its way equally to the four guide-blade passages G. In these passages it acquires a velocity about equal to that due to half the fall, and is directed into the wheel at an angle of about 10 or 12 degrees with the tangent to its circumference. The wheel W receives the water in equal proportions from each guide-blade passage." — Encyclopedia Britannica, 1893

Reaction Turbine

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines.…

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines. It is one of the best even in normal conditions of working, and the mode of regulation introduced is decidedly superior to that in most reaction turbines; it might almost be said to be the only mode of regulation which satisfies the conditions of efficient working, and it has been adopted in a modified form in the Leffel turbine, which is now largely used in america. The turbine has suction pipes, which permit the turbine to be placed at any height less than 30 feet above the tail-water level. The water enters the turbine by cast-iron supply pipes at A, and is discharged through two suction pipes S. The water on entering the case distributes itself through a rectangular supply chamber SC, from which it finds its way equally to the four guide-blade passages G. In these passages it acquires a velocity about equal to that due to half the fall, and is directed into the wheel at an angle of about 10 or 12 degrees with the tangent to its circumference. The wheel W receives the water in equal proportions from each guide-blade passage." — Encyclopedia Britannica, 1893

Reaction Turbine

"Professor James Thomson's inward flow or vortex turbine has been selected as the type of reaction turbines.…

"Heterocercal tail of Acipenser. a, fulcra; b, osseous bucklers." — Encyclopedia Britannica, 1893

Acipenser

"Heterocercal tail of Acipenser. a, fulcra; b, osseous bucklers." — Encyclopedia Britannica, 1893

One of the sacred monkeys of India. It is 18 inches long, the tail 6 or 8 inches, and mostly of a yellowish brown color with a pinkish face.

Rhesus Monkey

One of the sacred monkeys of India. It is 18 inches long, the tail 6 or 8 inches, and mostly of a yellowish…

"A small fish, about a span long, much esteemed for its rich and peculiar flavor. It is not much longer than the middle finger, thicker in proportion than the herring, to which it has a general resemblance; the head is sharp-pointed, and the under jaw much shorter than the upper; the scales large, silvery, and easily removed, the tail deeply forked." — Chambers' Encyclopedia, 1875

Anchovy

"A small fish, about a span long, much esteemed for its rich and peculiar flavor. It is not much longer…

"A genus of plants of the natural order Ranunculaceae, having an involucre of three divided leaves, more or less remote from the flower, a petaloid calyx, searcely distinguishable from the corolla, and soft woolly achenia, which in some species have tails." — Chambers' Encyclopedia, 1875

Anemone Coronaria

"A genus of plants of the natural order Ranunculaceae, having an involucre of three divided leaves,…

A flycatching bird with a large fan—like tail.

Fan Tailed Flycatcher

A flycatching bird with a large fan—like tail.

A mole—rat having the eyes open, though very small, ears naked and very short, thumb rudimentary, tail short and hartially haired, and general fom robust.

Bamboo Rat

A mole—rat having the eyes open, though very small, ears naked and very short, thumb rudimentary,…

A large bird with varigated plumage, short soft tail feathers, well developed hind toe and long bill.

Tinamou

A large bird with varigated plumage, short soft tail feathers, well developed hind toe and long bill.

It is four inches long with a scaly tail. Its fur is hispid and glossy.

Rice Field Mouse

It is four inches long with a scaly tail. Its fur is hispid and glossy.

"A digitigrade carnivorous mammal of the cat kind, peculiar to the American continent. It attains a length of about 3 feet, while the tail measures some 18 inches more. The ocelot inhabits great forests; its food consists mainly of birds and rodents; and it is timid but blood-thirsty." — Winston's Encyclopedia, 1919

Ocelot

"A digitigrade carnivorous mammal of the cat kind, peculiar to the American continent. It attains a…

"Plumage of Bird. Bohemian Chatterer (Bombycilla garrula). a, primaries; b, secondaries; c, coverts; d, scapulars; e, tail feathers; f, forehead; g, sinciput; h, occiput." — Winston's Encyclopedia, 1919

Plumage of Bird

"Plumage of Bird. Bohemian Chatterer (Bombycilla garrula). a, primaries; b, secondaries; c, coverts;…

"A. Pelvis and bones of the leg of the Leon or Diver; i, Innominate bone; f, Thighbone (femur); r, Tibia; r, Fibula, together forming the shank; m, Tarso-metatarsus; p Phalanges of the toes. B, Tail of the Golden Eagle; s, Ploughshare-shaped bone, carrying the great tail-feathers." — Winston's Encyclopedia, 1919

Diver Bones

"A. Pelvis and bones of the leg of the Leon or Diver; i, Innominate bone; f, Thighbone (femur); r, Tibia;…

"Coal-gas was first used as a lighthouse illuminant at Salvore, near Trieste, in 1817. For many years it has been used in the harbour lights of Great Britain when in the neighborhood of gas-works. Mr. J. R. Wigham has designed a compound or crecus burner consisting of a group of twenty-eight vertical tubes, each carrying an ordinary double fish-tail burner, and the ignited gases issuing from all these jets unite into one large flame." —The Encyclopedia Britannica, 1910

Coal-gas

"Coal-gas was first used as a lighthouse illuminant at Salvore, near Trieste, in 1817. For many years…

A woodland salamander with a rusty red back from head to tail.

Red Back Salamander

A woodland salamander with a rusty red back from head to tail.

"This very extraordinary species from north-east Africa differs from all other rodents in the peculiar granulated plated which cover the temporal fossae, and from all the species of the section in the rudimentary condition of the clavicles as well as in the possession of an opposable hallux. The hair is very peculiar in structure, and forms a crest along the back and tail." —The Encyclopedia Britannica, 1903

Lophiomys Imhausi

"This very extraordinary species from north-east Africa differs from all other rodents in the peculiar…

"Terrestril Rodents, with imperfect clavicles, elongated hind limbs, short recurved tail, and long ears. Skull compressed, frontals with large wing-shaped post-orbital processes; molars as in Lagomyidae." —The Encyclopedia Britannica, 1903

Lepus Timidus

"Terrestril Rodents, with imperfect clavicles, elongated hind limbs, short recurved tail, and long ears.…

About two feet in length of a heavy and clumsy shape, short legs, and short thick tail. Its fur is commonly a grizled gray.

European Badger

About two feet in length of a heavy and clumsy shape, short legs, and short thick tail. Its fur is commonly…

Nerve cell from the brain; <em>a</em>, processes by which it communicates with other cells near by; <em>ax</em>, long process or axis cylinder terminating in the tail end of the spinal cord; <em>n</em>, nucleus.

Nerve Cell

Nerve cell from the brain; a, processes by which it communicates with other cells near by;…

A small, wingless insect. Its common name derives from the animals silver-gray color

Silverfish

A small, wingless insect. Its common name derives from the animals silver-gray color

This pupa, or chrysalis, is fastened to a little silken pad by the tail, but is also sustained by a silken band in front of the middle, so that it is said to be girthed.

Black Swallowtail Butterfly Larva

This pupa, or chrysalis, is fastened to a little silken pad by the tail, but is also sustained by a…

Small arboreal mammals with long-furry tails, large eyes, and fox like facial features.

Lemur

Small arboreal mammals with long-furry tails, large eyes, and fox like facial features.

A raccoon like animal with a ringed tail and a pointed snout.

Mexican Coati

A raccoon like animal with a ringed tail and a pointed snout.

A North American woodland creature notorious for it's curiosity and ringed eyes and tail.

Raccoon

A North American woodland creature notorious for it's curiosity and ringed eyes and tail.

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

Saururus

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

A Podurid, or spring-tail, found on manure beds.

Podurid

A Podurid, or spring-tail, found on manure beds.

A common shrimp, a genus of the decapod Crustacea.

Shrimp

A common shrimp, a genus of the decapod Crustacea.

"Skate, a common name for several species of the genus Raia. The members of this genus are characterized by the two dorsal fins on the tails and the absence of a tail spine, and by the pelvic fins being deeply notched."&mdash;Finley, 1917

Common Skate

"Skate, a common name for several species of the genus Raia. The members of this genus are characterized…

"The Japanese spaniel, sometimes called the 'sleeve dog', is black and white in color; coat massive and very silky; tail tightly curled over its back, with flowering plume; very diminutive, some specimens weighing under four pounds."—Finley, 1917

Japanese Spaniel

"The Japanese spaniel, sometimes called the 'sleeve dog', is black and white in color; coat massive…

The pipit or titlark is a small American bird that often flicks its tail.

Pipit

The pipit or titlark is a small American bird that often flicks its tail.

Three kittens hear a mouse and think they see the tail. The mouse is under the bed, but they do not see it.

Three Kittens 8

Three kittens hear a mouse and think they see the tail. The mouse is under the bed, but they do not…

Three kittens chase what they think is a mouse tail while the actual mouse under the bed runs away in a crack.

Three Kittens 9

Three kittens chase what they think is a mouse tail while the actual mouse under the bed runs away in…

Three kittens pull what they think is a mouse tail.

Three Kittens 10

Three kittens pull what they think is a mouse tail.

Three kittens pull what they think is a mouse tail until it breaks.

Three Kittens 11

Three kittens pull what they think is a mouse tail until it breaks.

The head, foot, and tail of a Stone Chat Wheat-Ear

Stone Chat Wheatear

The head, foot, and tail of a Stone Chat Wheat-Ear

The head, foot, and tail-feather of the Brown Creeper.

Brown Creeper

The head, foot, and tail-feather of the Brown Creeper.

"1. Lower mandible. 2. Upper mandible. 3. Forehead. 4. Loral space. 5. Crown of the head. 6. Hind part of the head. 7. Scapulars--long feathers frm shoulders over sides of back. 8. Smaller wing coverts. 9. Bend of the wing. 10. Larger wing coverts. 11. Tertials, arising from the second bone of the wing at the elbow-joint. 12. Secondaries, from the second bone of the wing. 13. Primaries, from the first bone of the wing. 14. Tibia, the thigh. 15. Tarsus, the shank. 16. Upper tail coverts. 17. Lower tail coverts. 18. Tail feathers." -Roosevelt, 1884

Bird Parts

"1. Lower mandible. 2. Upper mandible. 3. Forehead. 4. Loral space. 5. Crown of the head. 6. Hind part…

Illustration of a child holding a kite that can be used to write mathematics story problems involving addition and subtraction. For example: John's kite tail was 4 feet long. 1 foot of it broke off. How many feet were left?

Child Holding A Kite

Illustration of a child holding a kite that can be used to write mathematics story problems involving…

Two members of the cat-tail family of grasses. The left: Typha latifolia. The right: Typha angustifolia (narrow-leaved cat-tail).

Cat-Tails

Two members of the cat-tail family of grasses. The left: Typha latifolia. The right: Typha angustifolia…

"Forms of spermatozoa (not drawn to scale). 1 and 2. Immature and mature spermatozoa of snail; 3. of bird; 4. of man (h., head; m., middle portion; t., tail); 5. of salamander, with vibratile fringe (f.); 6. of Ascaris, slightly amoeboid with cap (c); 7. of crayfish." -Thomson, 1916

Spermatozoa

"Forms of spermatozoa (not drawn to scale). 1 and 2. Immature and mature spermatozoa of snail; 3. of…

"Arenicola marina. Entire animal viewed slightly from left side. Note anterior mouth; setae on anterior region; setae and gills on median region; thinner tail region often longer than shown." -Thomson, 1916

Lugworm

"Arenicola marina. Entire animal viewed slightly from left side. Note anterior mouth; setae on anterior…

"Longitudinal section of lobster, showing some of the organs. H., Heart; AO., ophthalmic artery; SA., superior abdominal artery; MG., mid-gut; DG., digestive gland; HG., hind-gut; Ex., extensor muscles of he tail; Fl., flexor muscles of the tail; IA., inferior abdominal artery; G., gizzard; C., cerebral ganglia; P., pericardium; T., testes." -Thomson, 1916

Lobster Organs

"Longitudinal section of lobster, showing some of the organs. H., Heart; AO., ophthalmic artery; SA.,…