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States admitted during James Monroe's presidency, "the era of good feeling": 1817-Mississippi, 1818- Illinois, 1819- Alabama, 1820- Maine, 1821- Missouri.

States Admitted 1817-1821

States admitted during James Monroe's presidency, "the era of good feeling": 1817-Mississippi, 1818-…

The Statue of Liberty in New York is the largest statue in the world, given as a gift from France to celebrate 100 years of United States independence.

Statue of Liberty

The Statue of Liberty in New York is the largest statue in the world, given as a gift from France to…

The tomb of President William McKinley in Canton, Ohio.

Tomb of President McKinley

The tomb of President William McKinley in Canton, Ohio.

The 25th president, William McKinley.

President William McKinley

The 25th president, William McKinley.

The burial place of President James Madison in Montpelier, Virginia.

Tomb of President Madison

The burial place of President James Madison in Montpelier, Virginia.

"(1798-1859), an American educator who helped to establish the present common school system in the United States." -Foster, 1921

Horace Mann

"(1798-1859), an American educator who helped to establish the present common school system in the United…

(1755-1835) Chief Justice of the United States Supreme Court.

John Marshall

(1755-1835) Chief Justice of the United States Supreme Court.

(1869-1919) American labor leader and president of the United Mine Workers of America.

John Mitchell

(1869-1919) American labor leader and president of the United Mine Workers of America.

Thomas Jefferson's estate near Charlottesville, Virginia.

Monticello

Thomas Jefferson's estate near Charlottesville, Virginia.

This fraction chart can be used for students to find A, B, and C in percentage. It can also be used to answer these questions (if it is 2.5 by 2 inches): "How many square inches in the entire figure? How many square inches in C? What part of a square inch is B? How large is A when compared to C? How large is B when compared to A? Into how many quarter-inch squares could you divide the whole figure?" -Foster, 1921

Fraction Chart

This fraction chart can be used for students to find A, B, and C in percentage. It can also be used…

A strong-scented herbaceous plant of the genus Ruta, nat. order Rutacae, a native of S. Europe, but also cultivated in gardens in the United States.

Rue Plant

A strong-scented herbaceous plant of the genus Ruta, nat. order Rutacae, a native of S. Europe, but…

A grid representing 100 square yards with 1/4 shaded.

1/4 of 100 Square Yards

A grid representing 100 square yards with 1/4 shaded.

A bony structure located at the bottom of the spine. The human sacrum forms the back part of the pelvis, is roughly triangular in shape, consists of five united vertebrae, and from its solidity it is well adapted to serve as the keystone of the pelvic arch.

Pelvic Bone, Male

A bony structure located at the bottom of the spine. The human sacrum forms the back part of the pelvis,…

In birds the hemispheres are not united as in humans; the cerebellum is proportionately larger than the medulla oblongata, and the comparative weight of the brain to the body is less than in mammals. Labels: 1, Cerebrum. 2, Optic ganglion. 3, Cerebellum. 4, Medulla oblongata.

Brain of a Bird

In birds the hemispheres are not united as in humans; the cerebellum is proportionately larger than…

The nervous system of insects is composed primarily of a double series of ganglions united by longitudinal cords. Shown is a diagram of the nervous system of a beetle. Labels: 1, Central ganglia. 2, Nerves that connect the ganglions.

Diagram of Nervous System of a Beetle

The nervous system of insects is composed primarily of a double series of ganglions united by longitudinal…

From the southeast, a man views Devils Tower or Mato Teepee, a national monument in Wyoming.

Devils Tower

From the southeast, a man views Devils Tower or Mato Teepee, a national monument in Wyoming.

Transverse section of femur of a human embryo about eleven weeks old. Labels: a, rudimentary Haversian canal in cross sections; b, in longitudinal section; c, osteoblast; d, newly formed osseous substance of a lighter color; e, that of greater age; f, lacunae with their cells; g, a cell still united to an osteoblast.

Formation of Compact Bone in a Human

Transverse section of femur of a human embryo about eleven weeks old. Labels: a, rudimentary Haversian…

Muscular fiber cells from the heart. The fibers which lie side by side are united at frequent intervals by short branches.

Muscular Fiber Cells from the Heart

Muscular fiber cells from the heart. The fibers which lie side by side are united at frequent intervals…

Three laryngoscopic view of the superior aperture of the larynx and surrounding parts. Labels: A, the glottis during the emission of a high note in singing; B, in easy and quite inhalation of air; C, in the state of widest possible dilation, as in inhaling a very deep breath. The diagrams A', B', and C', show in horizontal sections of the glottis in position of the vocal ligaments and arytenoid cartilages in the three several states represented in the other figures. In all the figures, so far as marked, the letters indicate the parts as follows, viz. : l, the base of the tongue; e, the upper free part of the epiglottis; e', the tubercle or cushion of the epiglottis; p h, part of the anterior all of the pharynx behind the larynx; in the margin of the aryteno-epiglottisdean fold w, the swelling of the membrane caused by the cartilages of Wrisberg; s. that of the cartilages of Santorini: a, the tip or summit of the arytenoid cartilages; c v, the true vocal cords r lips of the rima glottidis; c v s, the superior or false vocal cords; between them the ventricle of the larynx; in C, tr, is placed on the anterior wall of the receding trachea, and b indicated the commencement of the two bronchi beyond the bifurcation which may be brought into view in this state of extreme dilation.

Movement of the Vocal Cords

Three laryngoscopic view of the superior aperture of the larynx and surrounding parts. Labels: A, the…

Different views of a portion of the spinal cord from the cervical region, with the roots of the nerves. A, the anterior surface of the specimen is shown; the anterior nerve root of its right side being divided. B, a view of the right side. C, the upper surface. D, the nerve roots and ganglion are shown from below. Labels: 1, The anterior median fissure; 2, posterior median fissure; 3, anterior lateral depression, over which the anterior nerve roots are seen to spread; 4, posterior lateral groove, into which the posterior roots are seen to sink; 5, anterior roots passing the ganglion; 5', the anterior root divided; 6, the posterior roots, the fibers of which pass into the ganglion 6'; 7, the united or compound nerve; 7', the posterior primary branch, seen is A and D to be derived in part from the anterior and in part from the posterior root.

Views of a Spinal Cord

Different views of a portion of the spinal cord from the cervical region, with the roots of the nerves.…

Diagram of part of digestive tract of a chick (4th day). The black line represents hypoblast , the outer shading mesoblast; lg, lung diverticulum with expanded end forming primary lung vesicles; St, stomach; l, two hepatic diverticulum, with their terminations united by solid rows of hypoblast cells; p, diverticulum of the pancreas with the vesicular diverticula coming from it.

Digestive Tract of a Chick

Diagram of part of digestive tract of a chick (4th day). The black line represents hypoblast , the outer…

The Distinguished Service Cross (United States Army) is the second highest military decoration awarded for extraordinary heroism and gallantry.

Distinguished Service Cross

The Distinguished Service Cross (United States Army) is the second highest military decoration awarded…

The Distinguished Service Medal is awarded to any man or woman who has distinguished himself of herself by exceptionally meritorious service to the government of the United States.

Distinguished Service Medal

The Distinguished Service Medal is awarded to any man or woman who has distinguished himself of herself…

The Domesday or Book of Winchester was a survey or census of England completed in 1086 for William the Conqueror.

Domesday Book

The Domesday or Book of Winchester was a survey or census of England completed in 1086 for William the…

"Cannon of the time of the restoration." -Foster, 1921

Cannon

"Cannon of the time of the restoration." -Foster, 1921

"In one genera [of the <em>Octopodidae</em> family] the arms are completely united in their whole extent by a thin membrane."

Cirrhoteuthis Mulleri (Eschricht)

"In one genera [of the Octopodidae family] the arms are completely united in their whole extent…

"'Liberty Enlightening the World,' a gift from the French Republic to the Greatest Republic. Height of Statue, 151 feet; of pedestal, 155 feet." -Foster, 1921

Statue of Liberty

"'Liberty Enlightening the World,' a gift from the French Republic to the Greatest Republic. Height…

"Gadwall, a rather large fresh-water duck, common in the interior of the United States and breeding north of the latitude of Kentucky. It is a black and white duck, marked with brown, and is one of the favorite game birds." -Foster, 1921

Gadwall

"Gadwall, a rather large fresh-water duck, common in the interior of the United States and breeding…

The tomb of 20th United States President James A. Garfield in Cleveland, Ohio.

Garfield's Tomb

The tomb of 20th United States President James A. Garfield in Cleveland, Ohio.

The twentieth United States President, James Abram Garfield.

James Abram Garfield

The twentieth United States President, James Abram Garfield.

Monument of twentieth United States President, James Abram Garfield in Washington, D.C.

Garfield Monument

Monument of twentieth United States President, James Abram Garfield in Washington, D.C.

"The river-tortoises only rarely come on land. The toes are united up to the claws by broad, flexible membranes."

Egyptian River-Turtle

"The river-tortoises only rarely come on land. The toes are united up to the claws by broad, flexible…

"In all its movements this neck is a counterpart of the reptile, and imitates its undulations; therefore in the United States it has received the name of the Serpent-bird."

Darter

"In all its movements this neck is a counterpart of the reptile, and imitates its undulations; therefore…

"Its flight is as powerful as that of the golden eagle, and its adroitness and strength are even greater. This eagle is the chosen emblem of the United States."

Bald or White-headed Eagle (Haliaetus Leucocephalus)

"Its flight is as powerful as that of the golden eagle, and its adroitness and strength are even greater.…

A: Eggs B: Larva C: Pupa D: Imago, or perfect insect

Hydrophilus in its Four States

A: Eggs B: Larva C: Pupa D: Imago, or perfect insect

The longleaf pine has a type of pine cone that is large, open and commonly found in the South Atlantic and Gulf States.

Longleaf Pine (Pinus palustris Mill.). Open cone, natural size.

The longleaf pine has a type of pine cone that is large, open and commonly found in the South Atlantic…

The longleaf pine commonly found in the South Atlantic and Gulf States. The longleaf pine branch has a terminal bud.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Branch with terminal bud

The longleaf pine commonly found in the South Atlantic and Gulf States. The longleaf pine branch has…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves come 3 in a bundle, 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Leaf bundle.

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves come 3 in a bundle,…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Primary leaf bracts (magnified)

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. cross sections (magnified) of leaves.

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. cross sections (magnified) of leaves.

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. cross sections (magnified) of leaves.

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. epidermis of leaf (magnified)

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. closed cone

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. open cone

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. apophyses

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. cone scales, dorsal view

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. cone scales, ventral view

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. seed

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. seed wings dorsal view

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States of America.

Cuban pine (pinus cubensis Griseb.). Two-thirds natural size. seed wings ventral view

The Cuban pine, which occurs mostly in the West Indies and South America, as well as the Gulf States…

1. Leaf with batches of eggs laid upon it. 2. Batches of recently aid eggs. 3. Eggs in which caterpillars can be perceived. 4. Batch of eggs from which the caterpillars have already emerged. 5. Small caterpillars hanging by threads. 6. Leaf with the chrysalis. 7. Caterpillar. 8. Moth.

The Vine Pyralis in its Three States

1. Leaf with batches of eggs laid upon it. 2. Batches of recently aid eggs. 3. Eggs in which caterpillars…

A stack of double eagle coins. A Double Eagle is a gold coin of the United States with a denomination of $20.

Double Eagles Stack

A stack of double eagle coins. A Double Eagle is a gold coin of the United States with a denomination…

"The caterpillar of which, commonly known as the tobacco-worm in the Middle States, is very destructive to the leaf of the tobacco-plant, when the worm is young, by eating holes in the leaves, thus spoiling them for use as wrappers for cigars, and when old by devouring the whole of the leaf itself." -Watts, 1874

Tobacco worm

"The caterpillar of which, commonly known as the tobacco-worm in the Middle States, is very destructive…

"A species after death, when the weapons of death have been rubbed off; that is to say, the bristles. It has been calculated that more than ten thousand pieces, each admirably arranged and united, enter into the composition of the shell of this creature."

Sea Urchin without Spines, Arcocladia Mamillata

"A species after death, when the weapons of death have been rubbed off; that is to say, the bristles.…

"A species after death, when the weapons of death have been rubbed off; that is to say, the bristles. It has been calculated that more than ten thousand pieces, each admirably arranged and united, enter into the composition of the shell of this creature."

Buccal Armature of Echinus Lividus

"A species after death, when the weapons of death have been rubbed off; that is to say, the bristles.…

It is native to the Sonoran Desert in Arizona, the Mexican states of Sonora and Baja California, and an extremely small area of California.

Saguaro

It is native to the Sonoran Desert in Arizona, the Mexican states of Sonora and Baja California, and…

An American statesman, politician, writer, brewer, and one of the Founding Fathers of the United States. He was the second cousin of John Adams.

Samuel Adams

An American statesman, politician, writer, brewer, and one of the Founding Fathers of the United States.…

An image of Missouri's Botanical Garden, formerly known as Shaw's Garden in 1874. Founded in 1859, the Missouri Botanical Garden is one of the oldest botanical institutions in the United States and a National Historic Landmark.

Missouri's Botanical Garden

An image of Missouri's Botanical Garden, formerly known as Shaw's Garden in 1874. Founded in 1859, the…

Thomas Hart Benton (3/14/1784 - 4/10/1858) was a U.S. Senator from Missouri and a staunch advocate of westward expansion of the United States. He served in the Senate from 1821 to 1851, becoming the first member of that body to serve five terms. Benton was an architect and champion of westward expansion by the United States, a case that became known as the Manifest Destiny.

Thomas Benton

Thomas Hart Benton (3/14/1784 - 4/10/1858) was a U.S. Senator from Missouri and a staunch advocate of…