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…

Front view of the medulla, pons and mesencephalon of a full-time human foetus.

Brain

Front view of the medulla, pons and mesencephalon of a full-time human foetus.

Back view of the medulla, pons and mesencephalon of a full-time human foetus

Brain

Back view of the medulla, pons and mesencephalon of a full-time human foetus

Brain of Petromyzon marinus (sea lamprey),dorsal view.

Brain of Sea Lamprey

Brain of Petromyzon marinus (sea lamprey),dorsal view.

Brain of Petromyzon marinus (dorsal view).

Brain

Brain of Petromyzon marinus (dorsal view).

Ventral view of the brain of ornithorynchus

Brain

Ventral view of the brain of ornithorynchus

The side view of a cotton worm.

Cotton Worms

The side view of a cotton worm.

Dorsal view of the brain of ornithorynchus

Brain

Dorsal view of the brain of ornithorynchus

Mesial view of the brain of ornithorynchus

Brain

Mesial view of the brain of ornithorynchus

The top view of a cotton worm

Cotton Worms

The top view of a cotton worm

The side and top view of an egg from the Anisopteryx pometaria.

Canker Worm

The side and top view of an egg from the Anisopteryx pometaria.

Lateral view of the brain of ornithorynchus

Brain

Lateral view of the brain of ornithorynchus

Mesial view of the brain of the tasmanian devil

Brain

Mesial view of the brain of the tasmanian devil

Dorsal view of the brain of a ratel

Brain

Dorsal view of the brain of a ratel

Lateral view of the brain of a ratel

Brain

Lateral view of the brain of a ratel

Lateral view of cerebral hemisphere of Gorilla

Brain

Lateral view of cerebral hemisphere of Gorilla

The side and top view of the segments of the Canker Worm.

Canker Worm Segments

The side and top view of the segments of the Canker Worm.

Cylinder, charing cross bridge

Cross Bridge

Cylinder, charing cross bridge

Marchantia polymorpha. Stoma in surface view

Bryophyta

Marchantia polymorpha. Stoma in surface view

A view of Mount Vernon in George Washington's time.

Mount Vernon

A view of Mount Vernon in George Washington's time.

A view of Monticello in Charlottesville, Virginia.

Monticello

A view of Monticello in Charlottesville, Virginia.

Section lengthwise of flax seed cut half away, bringing contained embryo into view.

Flax Pod Cut in Half

Section lengthwise of flax seed cut half away, bringing contained embryo into view.

Embryo of pea, i.e. a pea with the coats removed; the short and thick caulicle presented to view.

Pea Embryo

Embryo of pea, i.e. a pea with the coats removed; the short and thick caulicle presented to view.

A painting by Johann Overbeck of the two saints kneeling in front of Jesus Christ.

The Calling of St. James and St. John

A painting by Johann Overbeck of the two saints kneeling in front of Jesus Christ.

Inside view of a separated scale or open carpel of a Pitch Pine cone with a seed in place.

Pitch Pine Seed

Inside view of a separated scale or open carpel of a Pitch Pine cone with a seed in place.

Magnified view of some of a simple fresh water Alga, the Tetraspora lubrica, each sphere of which may answer to an individual plant.

Alga

Magnified view of some of a simple fresh water Alga, the Tetraspora lubrica, each sphere of which may…

Magnified view of a portion of a transverse slice of stem of Calla Lily. The great spaces are tubular air-channels built up by the cells.

Calla Lily

Magnified view of a portion of a transverse slice of stem of Calla Lily. The great spaces are tubular…

Magnified view of surface of a bit of young Maple wood from which the bark has been torn away, showing the wood-cells and the bark-ends of medullary rays.

Bit of Young Maple Wood

Magnified view of surface of a bit of young Maple wood from which the bark has been torn away, showing…

A Tree-Fern, Dicksonia arborescens, with a young one near its base. In front a common herbaceous Fern (Polypodium vulgare) with its creeping stem or rootstock.

Tree-Fern

A Tree-Fern, Dicksonia arborescens, with a young one near its base. In front a common herbaceous Fern…

Otiocerus coquebertii, a small insect of a somewhat elongated form and having a small projection in front, resembling the lantern of the true fulgora or lantern fly of Surinam, but on a very diminutive scale; it feeds on the wild grape, beech, and oak; it is 0.35 to 0.45 in length, and of a yellowish-white color, with a bright carmine red stripe running longitudinally along each side of its wing, and which stripe is usually forked at its hinder end.

Planthopper

Otiocerus coquebertii, a small insect of a somewhat elongated form and having a small projection in…

A most singularly-formed insect; the front part of its head being much prolonged, and projecting upward like a thin curved horn.

Fulgora

A most singularly-formed insect; the front part of its head being much prolonged, and projecting upward…

It consists of a sheet-iron furnace, having the form of a half cylinder, tapered at the end's, in which a fire is built, and this heated furnace, being drawn along the furrow, destroys the worms.

Army-Worm Killer

It consists of a sheet-iron furnace, having the form of a half cylinder, tapered at the end's, in which…

This view of Florence shows the Duomo (cathedral) on the right and Giotto's Campanile (tower) on the left.

Florence

This view of Florence shows the Duomo (cathedral) on the right and Giotto's Campanile (tower) on the…

Sweet Amarillis, by a spring's soft and soul murmuring's, Slept; and thus sleeping thither flew a robin-red-breast, who at view not seeing her at all to stir, brought leaves and moss to cover her.

Sweet Amarillis

Sweet Amarillis, by a spring's soft and soul murmuring's, Slept; and thus sleeping thither flew a robin-red-breast,…

Lake George, also known as <em>Queen of American Lakes</em>, is a long narrow lake at the southeast base of the Adirondack Mountains, northern New York. The lake extends about 32.2 miles on a north-south axis and varies from 1 to 3 miles in width.

View of Lake George, N.Y.

Lake George, also known as Queen of American Lakes, is a long narrow lake at the southeast…

Section through the Head and Neck on the Median Line. 1. Medulla Oblongata 2. Pons 3. Right lobe of cerebrum 4. Cerebellum in section 5. Blood vessel 6. Corpus Striatum 7. Nasal Passage 8. Nasal bone 9. Soft Palate 10. Hard Palate 11. Tongue 12. Epiglottis 13. Os Hyoides 14. Oesaphagus 15. Spinal 16. Larynx 17. Windpipe

Sectional view of the Head

Section through the Head and Neck on the Median Line. 1. Medulla Oblongata 2. Pons 3. Right lobe of…

A cylinder with a triple threaded screw in a water tight case that revolves ater to the top for the irrigation of land.

Archime' dean Screw

A cylinder with a triple threaded screw in a water tight case that revolves ater to the top for the…

This sculpture by the great artist, Donatello, is of a man dressed in armor holding a shield in front of him. The statue is made of marble and is now located in S. Michele, Florence.

Saint George

This sculpture by the great artist, Donatello, is of a man dressed in armor holding a shield in front…

View on the Coast of Mount Desert Island, Maine.

Mount Desert Island

View on the Coast of Mount Desert Island, Maine.

Front view of a papilionaceous corolla.

Corolla

Front view of a papilionaceous corolla.

View of a papilionaceous corolla, displaying <em>s</em>, Standard or Vexilluml <em>w</em>, wings, or Alae; <em>k</em>, Keel, or Carina.

Corolla

View of a papilionaceous corolla, displaying s, Standard or Vexilluml w, wings, or…

A pistil, that is, a scale of the cone, of a Larch, at the time of flowering; inside view, showing its pair of naked ovules.

Pistil

A pistil, that is, a scale of the cone, of a Larch, at the time of flowering; inside view, showing its…

One of the scales or carpels of the American Arbor-Vitae, the inside exposed to view, showing a pair of ovules on its base.

Arbor-Vitae

One of the scales or carpels of the American Arbor-Vitae, the inside exposed to view, showing a pair…

Horsetail, view of under side of the shield-shaped body, bearing a circle of spore-cases.

Horsetail

Horsetail, view of under side of the shield-shaped body, bearing a circle of spore-cases.

Horsetail, view spore-case from the under side of the shield-shaped body.

Horsetail

Horsetail, view spore-case from the under side of the shield-shaped body.

Horsetail, view of a spore with the attached arms moistened.

Horsetail

Horsetail, view of a spore with the attached arms moistened.

Horsetail, view of a spore with the attached arms dry.

Horsetail

Horsetail, view of a spore with the attached arms dry.

Inside view of one of the bracts and spore-case.

Lycopodium Carolinianum

Inside view of one of the bracts and spore-case.

Section of a part of the front, showing two immersed spore-cases, and one emptied space.

Riccia

Section of a part of the front, showing two immersed spore-cases, and one emptied space.

View of three stages of the conjugation

Desmid

View of three stages of the conjugation

Cysts on a living rose leaf, sectional view.

Cysts

Cysts on a living rose leaf, sectional view.

A detailed view of the back of the hog-louse of the Hermatopinus urius species.

Hog Louse

A detailed view of the back of the hog-louse of the Hermatopinus urius species.

A detailed view of the scansorial claw of the hog-louse of the Hermatopinus urius species.

Hog Louse

A detailed view of the scansorial claw of the hog-louse of the Hermatopinus urius species.

Cicada egg punctures, side view of an egg-chamber.

Cicada

Cicada egg punctures, side view of an egg-chamber.

Front leg of Phymata Erosa.

Jagged Ambush Bug

Front leg of Phymata Erosa.

Epicauta vittata species; true pupa from front.

Blister Beetle

Epicauta vittata species; true pupa from front.

A spring with a bird in front of it.

Spring

A spring with a bird in front of it.

A wooden case or box in which the compass on board a ship is kept to protect it from injury. A light is placed within it at night to insure that its indications are seen. It is placed immediately in front of the wheel or steering apparatus, and secured to the deck, usually by metal stays. The after portion has glass windows, so that the compass is at all times visible to the helmsman, who stands at the wheel.

Binnacle

A wooden case or box in which the compass on board a ship is kept to protect it from injury. A light…

Hind leg of Apis, wax cutter and outer view of leg.

Bee Leg

Hind leg of Apis, wax cutter and outer view of leg.

Hind leg of Bombus, inner view of same and first joint of tarsus.

Bee Leg

Hind leg of Bombus, inner view of same and first joint of tarsus.