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A scalpel.

Scalpel

A scalpel.

A pair of tweezers used for dissection.

Tweezers

A pair of tweezers used for dissection.

A needle, used for dissection.

Needle

A needle, used for dissection.

"Longitudinal section of a Hydra; <em>b</em>, bud which will form a young one; <em>ba</em>, base by which it is attached when not creeping." &mdash; Davison, 1906

Section of a hydra

"Longitudinal section of a Hydra; b, bud which will form a young one; ba, base by…

"Skeleton of the horse." &mdash; Davison, 1906

Skeleton of a Horse

"Skeleton of the horse." — Davison, 1906

"Fore limbs of vertebrates showing similarity of structure. <em>A</em>, salamander; <em>B</em>, turtle; <em>C</em>, very young bird; <em>D</em>, adult bird; <em>E</em>, dog; <em>F</em>, man." &mdash; Davison, 1906

Forearms of vertebrates

"Fore limbs of vertebrates showing similarity of structure. A, salamander; B, turtle;…

"The most essential parts of human vision are contained in the eyeball, a nearly spherical body, about an inch in diameter, and capable of being turned considerably in its socket by the action of various muscles." — Avery, 1895

Eyeball

"The most essential parts of human vision are contained in the eyeball, a nearly spherical body, about…

"Many of both sexes wear enormous ear plugs and earrings, some of which are as big around as a napkin. The holes in the lobes of their ears so large that they can carry a cigar in them." &mdash;Carpenter, 1902

Dyak's ear

"Many of both sexes wear enormous ear plugs and earrings, some of which are as big around as a napkin.…

A human skeleton.

Skeleton

A human skeleton.

Human skeleton of a finger.

Finger

Human skeleton of a finger.

A picture of the backbone.

Backbone

A picture of the backbone.

A picture of the backbone.

Backbone

A picture of the backbone.

Picture of the skull, showing the hole which the backbone connects to the base of the skull.

Skull

Picture of the skull, showing the hole which the backbone connects to the base of the skull.

A human skull viewed from the left side.

Human Skull

A human skull viewed from the left side.

A human skull viewed from the top.

Cranium

A human skull viewed from the top.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human eye.

Eye

A sketch of the human eye.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human nose.

Nose

A sketch of the human nose.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human mouth and chin.

Mouth and Chin

A sketch of the human mouth and chin.

A sketch of the human ear.

Ear

A sketch of the human ear.

"Diagram to show the working parts of a gland. v and a are blood tubes with thin-walled branches around the parts of the gland c. These take material from the blood and, after changing it, send it to the mouth, stomach, or other places before the duct i." &mdash;Davison, 1910

Gland

"Diagram to show the working parts of a gland. v and a are blood tubes with thin-walled branches around…

"The stomach is a half-gallon sac, with an outer wall of muscle lined within by mucous membrane, made largely of gastric glands of which there are more than a million. These glands, each consisting of a tube with several branches, give out daily three quarts of gastric juice to dissolve the lean meat and other like foods." &mdash;Davison, 1910

Stomach

"The stomach is a half-gallon sac, with an outer wall of muscle lined within by mucous membrane, made…

"A tiny block out of the stomach wall. a, the mucous membrane; c and d, the muscles; h, gastric glands; m and n, blood tubes to the glands; e, mouths of glands within the stomach." —Davison, 1910

Cross-Section of Stomach Wall

"A tiny block out of the stomach wall. a, the mucous membrane; c and d, the muscles; h, gastric glands;…

"Piece of small intestine cut open to show wrinkling of inner coat bearing villi." &mdash;Davison, 1910

Piece of small intestine

"Piece of small intestine cut open to show wrinkling of inner coat bearing villi." —Davison, 1910

"Chief veins and arteries of the body. a, place of the heart; the veins are in black. On the right side of the pictures the veins just under the skin oare shown and on the other side the deep vessels near the bones.. b, vessels to the lungs." &mdash;Davison, 1910

Veins and arteries

"Chief veins and arteries of the body. a, place of the heart; the veins are in black. On the right side…

"The lymph vessels of the body. rc, the thoracic duct; lac, the lacteals taking the lymph and fatty part of food from the intestines." —Davison, 1910

Lymph Vessels

"The lymph vessels of the body. rc, the thoracic duct; lac, the lacteals taking the lymph and fatty…

"Blood plasma passing out of capillary to feed the body cells." &mdash;Davison, 1910

Capillaries

"Blood plasma passing out of capillary to feed the body cells." —Davison, 1910

"Diagram of the rush of blood when the heart beats. The valves v open above are closed below while the valves s closed above are open below." &mdash;Davison, 1910

Beating heart

"Diagram of the rush of blood when the heart beats. The valves v open above are closed below while the…

"The lungs fill up most of the cavity of the chest. One lies on either side of the heart which is in the middle of the chest. The lungs in animals are called lights because they are spongy sacs and so light as to float when thrown into water." &mdash;Davison, 1910

The lungs

"The lungs fill up most of the cavity of the chest. One lies on either side of the heart which is in…

"Diagram of the blood vessels in the kidney." &mdash;Davison, 1910

Kidney

"Diagram of the blood vessels in the kidney." —Davison, 1910

"A block out of the skin. a, dead part and d live part of the epidermis; e, sweat glands; n, nerve endings." &mdash;Davison, 1910

Section of skin

"A block out of the skin. a, dead part and d live part of the epidermis; e, sweat glands; n, nerve endings."…

"Fine threads of fibers forming a muscle." &mdash;Davison, 1910

Muscle fibers

"Fine threads of fibers forming a muscle." —Davison, 1910

"The extensor muscles on the back of the forearm. Note the tendons at the wrist." &mdash;Davison, 1910

Muscles of the forearm

"The extensor muscles on the back of the forearm. Note the tendons at the wrist." —Davison, 1910

"Muscles on the front of the arm. Note the while cords, the tendons at the wrist." —Davison, 1910

Muscles of the Arm

"Muscles on the front of the arm. Note the while cords, the tendons at the wrist." —Davison, 1910

"Muscles of the leg showing how they pass into tendons at the ankle." &mdash;Davison, 1910

Muscles of the leg

"Muscles of the leg showing how they pass into tendons at the ankle." —Davison, 1910

"Ideal section, greatly enlarged, showing minute capillary circulations." &mdash;Brown, 1884

Villus

"Ideal section, greatly enlarged, showing minute capillary circulations." —Brown, 1884

The mouth and neck laid open. 1: The teeth. 3 and 4: Upper and lower jaws. 5: The tongue. 7: Parotid gland. 8: Sublingual gland. 9: Trachea (wind-pipe). 10 and 11: Esophagus (gullet). 12: Spinal column. 13: Spinal cord.

Mouth and Neck

The mouth and neck laid open. 1: The teeth. 3 and 4: Upper and lower jaws. 5: The tongue. 7: Parotid…

A genus of grasses including about sixty species, valuable alike for the production of hay and for their straw and seed. They are cultivated extensively in all temperate climates, and form valuable food for horses and cattle, but are also used for human food.

Oats

A genus of grasses including about sixty species, valuable alike for the production of hay and for their…

"The proportions of the human figure. As handed down to us by Vitruvius and described by Joseph Bonomi." &mdash;D'Anvers, 1895

Proportions of human figure

"The proportions of the human figure. As handed down to us by Vitruvius and described by Joseph Bonomi."…

"The column was originally surmounted by a colossal statue of Trajan (replaced in the seventh century by one of St. Peter), and contains no less than 2500 human figures and a great number of horses." &mdash;D'Anvers, 1895

Relief of Trajan Column

"The column was originally surmounted by a colossal statue of Trajan (replaced in the seventh century…

This diagram shows a side view of the right eye of man. a.c., central artery; a.h., aqueous humor; b., blind spot, the entrance of the optic nerve; c, conjunctiva; ch., choroid layer of the eye-ball; c.l., crystalline lens; c.m.c., circular fibers of the ciliary muscles; c.m.r., radial fibers of the ciliary muscles; co., cornea, the transparent portion of the sclerotic; c.p., ciliary process; c.s., canal of Schlemm, a lymphatic vessel; fo., fovea centralis, the point of clearest vision; o.n., optic nerve; o.s., ora serrata, the anterior wavy margin of the visual portion of the retina; r, the retinal layer; sc., sclerotic layer; sh., sheath of theoptic nerve; v.h., vitreous humor.

Human Eye

This diagram shows a side view of the right eye of man. a.c., central artery; a.h., aqueous humor; b.,…