Trade Dollar ($1.00) United States coin from 1873. Obverse has a seated, left-facing Liberty holding a label in her left hand which reads LIBERTY. At the base of her seat is inscribed IN GOD WE TRUST just above the date. She is surrounded by 13 stars - 6 facing. Reverse shows an eagle with a right-facing head with a label on which the motto is inscribed. Inscription - TRADE DOLLAR.

Silver Trade Dollar Coin, 1873

Trade Dollar ($1.00) United States coin from 1873. Obverse has a seated, left-facing Liberty holding…

Cardiac muscular tissue, magnified about 400 diameters. The cell-boundaries and cell-nuclei are indicated only in the right-hand portion of the figure.

Cardiac Muscular Tissue

Cardiac muscular tissue, magnified about 400 diameters. The cell-boundaries and cell-nuclei are indicated…

Blood corpuscles (cells). Labels: A, magnified about 400 diameters. The red corpuscles have arranged themselves in rouleaux; a, a, colorless corpuscle; B, red corpuscles more magnified and seen in focus; E, a red corpuscle slightly out of focus. Near the right -hand top corner is a red corpuscle seen in three-quarter face, and at C one is seen edgewise. F, G, H, I, white corpuscles highly magnified.

Blood Corpuscles

Blood corpuscles (cells). Labels: A, magnified about 400 diameters. The red corpuscles have arranged…

Villi of the small intestine; magnified about 80 diameters. In the right hand figure the lacteals, a, b, c, are filled with white injection; d, blood vessels. In the left-hand figure the lacteals alone are represented, filled with a dark injection. The epithelium covering the villi, and their muscular fibers, are omitted.

Villi of the Small Intestine

Villi of the small intestine; magnified about 80 diameters. In the right hand figure the lacteals, a,…

Leaves - compound (hand-shaped; leaflets, usually five, sometimes seven); opposite; edge toothed. Outline - of leaflet, long oval, long egg-shape, or long reverse egg-shape. Apex - taper-pointed. Base - pointed. Leaflet - four to nine inches long, one to three inches wide, usually minutely downy beneath. Flowers, pale yellow. April, May. Fruit - two to two and one half inches in diameter, rounded. Husk - not prickly, but uneven. Nut - one or two in a husk, large and brown. Found - from Alleghany County, Pennsylvania, southward along the Alleghany Mountains to Northern Georgia and Alabama, and westward. General Information - A tree thirty to seventy feet high. Its wood is light and hard to split. With the other species of the same genus it is preferred, above any other American wood, for the making of artificial limbs.

Genus Aesculus, L. (Buckeye, Horse Chestnut)

Leaves - compound (hand-shaped; leaflets, usually five, sometimes seven); opposite; edge toothed. Outline…

Leaves - compound (hand-shaped; leaflets, five); opposite; edge toothed. Outline - of leaflet, oval or long oval. Apex - taper-pointed. Base - pointed. Leaflets - three to seven inches long; one and a half to three inches wide. Bark - with a disagreeable odor. Flowers - small, yellowish-white. June. Fruit - about three fourths of an inch in diameter. Husk - prickly when young. Nut - smooth. Found - along the western slopes of the Alleghany Mountains - Pennsylvania to Northern Alabama and westward. General Information - A small, ill-scented tree (eighteen to thirty-five feet high). Its wood is light and hard to split. With the other species of the same genus it is preferred, above any other American wood, for the making of artificial limbs.

Genus Aesculus, L. (Buckeye, Horse Chestnut)

Leaves - compound (hand-shaped; leaflets, five); opposite; edge toothed. Outline - of leaflet, oval…

Veins of the upper extremity . Labels: 1, axillary artery; 2, axillary veins; 3, 4, basilic; 5, point where median basilic joins basilic; 6, posterior basilic vein; 8, anterior basilic vein; 9, point where cephalic enters axillary; 10, portion same vein; 11, point where median cephalic enters cephalic; 12, lower portion cephalic vein; 13, median cephalic vein; 14, median vein; 15, anastromosing branch; 16, cephalica-pollicis veins; 17, veins of fingers; 18, palmar veins.

Veins of the Arm and Shoulder

Veins of the upper extremity . Labels: 1, axillary artery; 2, axillary veins; 3, 4, basilic; 5, point…

View of the nerves on the back part of the forearm and hand.

Nerves of the Forearm and Hand

View of the nerves on the back part of the forearm and hand.

Arteries of the palm of the head and front of the forearm. Labels: 3, deep part of the raised pronator of the radius; 4, long supinator muscle; 5, long flexor of the thumb; 6, square pronator; 7, deep flexor of the fingers; 8, cubital flexor of the wrist; 9, annular ligament; 10, the brachial artery; 12, radial artery; 13, recurring radial artery joining the end of the upper deep one; 4, superficial veins; 15, cubital artery; 16, superficial palmary arch; 17, magna artery of the thumb and radial artery of the index; 18, back cubital recurring artery; 19, front interosseous artery; 20, back interosseous artery.

Arteries of the Hand and Forearm

Arteries of the palm of the head and front of the forearm. Labels: 3, deep part of the raised pronator…

In changing the compass from a small to large radius, hold the legs together with one hand and spin the nut with the other, in order to save wear on the threads.

Adjusting the Compass

In changing the compass from a small to large radius, hold the legs together with one hand and spin…

The divider is held in the right hand.

Holding the Divider

The divider is held in the right hand.

A man and his son walk hand in hand passed a train.

Father and Son

A man and his son walk hand in hand passed a train.

A hand giving a thumbs down.

Thumbs Down

A hand giving a thumbs down.

A hand holding a paper cup

Hand with cup

A hand holding a paper cup

"Lock the fingers together in front of the chest and pull one hand against the other." -Foster, 1921

Exercise

"Lock the fingers together in front of the chest and pull one hand against the other." -Foster, 1921

Bones of the hand.

Bones of the Hand

Bones of the hand.

A little girl sitting among flowers. The circle is bordered with hand games and images of playing.

Girl

A little girl sitting among flowers. The circle is bordered with hand games and images of playing.

A hand making a man running. Could also be the motion for the first half of "Jack be nimble, Jack be quick."

Finger Man

A hand making a man running. Could also be the motion for the first half of "Jack be nimble, Jack be…

A hand making a man jumping over the other hand's thumb. Could be the motion for the second half of Jack Be Nimble..."Jack, jump over the candlestick."

Finger Man Jumping

A hand making a man jumping over the other hand's thumb. Could be the motion for the second half of…

Hands forming a nest for a bird.

Hand Nest

Hands forming a nest for a bird.

Hands cupped like there is something small between them.

Cupped Hands

Hands cupped like there is something small between them.

A hand spread out with a little fairy sitting upon each finger.

Finger Fairies

A hand spread out with a little fairy sitting upon each finger.

A child subtracting with his fingers.

Five Minus One

A child subtracting with his fingers.

A child subtracting with his fingers.

Five Minus Two

A child subtracting with his fingers.

A child subtracting with his fingers.

Five Minus Three

A child subtracting with his fingers.

A child subtracting with his fingers.

Five Minus Four

A child subtracting with his fingers.

A child subtracting with his fingers.

Five Minus Five

A child subtracting with his fingers.

A child's hand showing there are five members of his family.

Family

A child's hand showing there are five members of his family.

"There was an old woman tossed up in a basket,Nineteen times as high as the moon;Where she was going I couldn't but ask itFor in her hand she carried a broom." -University Society, 1920

Old Woman

"There was an old woman tossed up in a basket, Nineteen times as high as the moon; Where she was going…

A man exercising with chest weights. In this position, he is moving his right hand up and out while he moves his left hand across his chest.

Chest Weights

A man exercising with chest weights. In this position, he is moving his right hand up and out while…

A man exercising with chest weights. In this position, he is moving his left hand up and out while he moves his right hand across his chest.

Chest Weights

A man exercising with chest weights. In this position, he is moving his left hand up and out while he…

"If a compass is not available, a watch can be used. Hold the watch flat in the hand and with the hour hand pointing in the direction of the sun; a direction halfway between the hour hand and 12 is south." -Finch, 1920

Watch Compass

"If a compass is not available, a watch can be used. Hold the watch flat in the hand and with the hour…

Standard hand reel for a weather kite used to study meteorology.

Kite Hand Reel

Standard hand reel for a weather kite used to study meteorology.

"The automatic hand or steam kite reel...is seen as it appears completely housed and not in use." -Department of Agriculture, 1899

Steam Kite Reel

"The automatic hand or steam kite reel...is seen as it appears completely housed and not in use." -Department…

"A transverse section before the union of the amnion folds, and a longitudinal median section after the union of the fold. a., Anterior end of blastoderm; p.,. posterior end of blastoderm; a.f., in the left-hand figure, the beginning of the amnion fold; am., amnion; a.c., amniotic cavity; s., serosa; ec., ectoderm; ll., lower germinal layer; y., yolk. The amniotic cavity marks the future ventral region of the embryo, so that the yolk mass is dorsal." -Thomson, 1916

Insect Embryo

"A transverse section before the union of the amnion folds, and a longitudinal median section after…

"Palmated.--Cut into oblong segments, so as to resemble a hand." -Newman, 1850

Palmate

"Palmated.--Cut into oblong segments, so as to resemble a hand." -Newman, 1850

"Digitate.--Having the form of an open hand." -Newman, 1850

Digitate Leaf

"Digitate.--Having the form of an open hand." -Newman, 1850

"Cidaris coronata–a common Oolitic echinoderm…showing the spines attached to tubercles on right hand." -Taylor, 1904

Cidaris coronata

"Cidaris coronata–a common Oolitic echinoderm…showing the spines attached to tubercles…

Bones of the hand.

Bones of the Hand

Bones of the hand.

Chopping tools used as hand axes in the Chellean age.

Chellean Age Chopping tools

Chopping tools used as hand axes in the Chellean age.

Conflict with a rattlesnake. Caption below illustration: "The snake when about a yard distant, made a violent spring. Jervas caught it in his right hand, directly under his head. He squeezed it with all his power. Its eyes almost started out of its head. It lashed its body on the ground, at the same time rattling loudly."

Conflict with a Rattlesnake

Conflict with a rattlesnake. Caption below illustration: "The snake when about a yard distant, made…

True Bravery, the American Army at Valley Forge in 1777. Caption below illustration: "After mentioning the reason which induced him not to accept the challenge, he applied a large hand-grenade to the candle, and when the fuse had caught fire, threw it on the floor, saying, 'Here gentlemen, this will quickly determine which of us all bare brave danger most.'"

True Bravery

True Bravery, the American Army at Valley Forge in 1777. Caption below illustration: "After mentioning…

The paper-making machine almost superseded the old hand making process of forming paper.

Paper Making Machine

The paper-making machine almost superseded the old hand making process of forming paper.

"The plant tillers like wheat, but not to the same degree. The cane ground is kept clean by hand-hoeing, or by the plough." -Lupton

Gathering, Sugar Cane

"The plant tillers like wheat, but not to the same degree. The cane ground is kept clean by hand-hoeing,…

A small portable organ played with the figures of the right hand, the left being used in working the bellows. It was much used during the 16th and 17th centuries.

Regal

A small portable organ played with the figures of the right hand, the left being used in working the…

The race with Hippomenes' for Atalanta's hand in marriage. He won by distracting her with beautiful golden apples he threw during the race.

Atalanta's Race

The race with Hippomenes' for Atalanta's hand in marriage. He won by distracting her with beautiful…

"Nerves of the had. 1, Nerves of the skin; 2, tendons; 3, arteries of the palm of the hand; 4, elbow nerve; 5, elbow artery; 6, nerve of the forearm; 7, nerve of the under-arm; 8, artery of the under-arm." -Foster, 1921

Hand Nerves

"Nerves of the had. 1, Nerves of the skin; 2, tendons; 3, arteries of the palm of the hand; 4, elbow…

The board of trade sign for an even cent.

Even Cent

The board of trade sign for an even cent.

The board of trade sign for split quotations.

Split Quotations

The board of trade sign for split quotations.

The board of trade sign for 1/8 cent.

1/8 Cent

The board of trade sign for 1/8 cent.

The board of trade sign for 1/4 cent.

1/4 Cent

The board of trade sign for 1/4 cent.

The board of trade sign for 3/8 cent.

3/8 Cent

The board of trade sign for 3/8 cent.

The board of trade sign for 1/2 cent.

1/2 Cent

The board of trade sign for 1/2 cent.

The board of trade sign for 5/8 cent.

5/8 Cent

The board of trade sign for 5/8 cent.

The board of trade sign for 3/4 cent.

3/4 Cent

The board of trade sign for 3/4 cent.

The board of trade sign for 7/8 cent.

7/8 Cent

The board of trade sign for 7/8 cent.

Papillae from the palm of the hand, with the epidermis removed. Magnified.

Papillae with Epidermis Removed

Papillae from the palm of the hand, with the epidermis removed. Magnified.

The metacarpal and phalangeal bones of the fingers, with their tendons and ligaments. Labels: 1, metacarpal bone, 2. tendon of the superficial flexor. 3, Tendon of the deep flexor passing through a perforation (*) of the superficial flexor.

Metacarpal and Phalangeal Bones of the Fingers

The metacarpal and phalangeal bones of the fingers, with their tendons and ligaments. Labels: 1, metacarpal…

"Effect of removal of a leaflet from a palmately compound leaf (e.g. Woodbine). B, normal leaf; C, after removal of upper right-hand leaflet. A, Unbroken lines represent average normal position of leaflets; dotted lines, average position of leaflets after operation; barred line, position of leaflet removed." -Gager, 1916

Leaflet Removal

"Effect of removal of a leaflet from a palmately compound leaf (e.g. Woodbine). B, normal leaf; C, after…

The tendons reach only to the wrist. Fine cords pass to the fingers.

Tendons of the Arm

The tendons reach only to the wrist. Fine cords pass to the fingers.