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"The Tapeworm is an intestinal worm, Tænia solium, in form somewhat resembling tape. Its length is from 5 to 15 yards, and its breadth from two lines at the narrowest part to four or five at the other or broader extremity. At the narrow end is the head, which is terminated anteriorly by a central rostellum, surrounded by a crown of small recurved hooks, and behind them four suctorial depressions; then follow an immense number of segments, each full of microscopic ova. The segments are capable of being detached when mature, and reproducing the parasite. There is no mouth; but nutrition appears to take place through the tissues of the animal, as algæ derive nourishment from the sea water in which they float. The digestive system consists of two tubes or lateral canals, extending from the anterior to the posterior end of the body, and a transverse canal at the summit of each joint. [Pictured] A, ovum with contained embryo, B, Cystericus longicollis."—(Charles Leonard-Stuart, 1911)

Tapeworm

"The Tapeworm is an intestinal worm, Tænia solium, in form somewhat resembling tape. Its length…

"The Benedictine system enjoined three virtues as essential; solitude, humility, and obedience." — Young, 1901

Cloister of the Lateran

"The Benedictine system enjoined three virtues as essential; solitude, humility, and obedience." —…

Hewitt was a congressman, major of New York City, teacher, iron manufacturer, and lawyer.

Abram Stevens Hewitt

Hewitt was a congressman, major of New York City, teacher, iron manufacturer, and lawyer.

"Used with indistinct or invisible targets and to define sectors." — Moss, 1914

Finger system

"Used with indistinct or invisible targets and to define sectors." — Moss, 1914

Educator who became president of Harvard and presided over a period of great growth which included the introduction of the elective system and the teaching of women.

Charles W. Eliot

Educator who became president of Harvard and presided over a period of great growth which included the…

A firm, hard, whitish substance, composing the skeleton.

Bone

A firm, hard, whitish substance, composing the skeleton.

"Among the cells of the body there is, besides the blood capillaries, a system of fine, thin-walled lymphatic capillaries." — Ritchie, 1918

Lymphatic Vessels in the Fingers

"Among the cells of the body there is, besides the blood capillaries, a system of fine, thin-walled…

"Larynx, trachea, and bronchi, showing the manner of division, and the rings of cartilage." — Tracy, 1888

Respiratory system

"Larynx, trachea, and bronchi, showing the manner of division, and the rings of cartilage." —…

"Brain and spinal cord, with the thirty-one pairs of spinal nerves." — Tracy, 1888

Central Nervous System

"Brain and spinal cord, with the thirty-one pairs of spinal nerves." — Tracy, 1888

"A crystal form does not necessarily make a solid figure. One such an example is this, of the Monoclinic System.

Crystal of the monoclinic system

"A crystal form does not necessarily make a solid figure. One such an example is this, of the Monoclinic…

"The Sphenoidal Class corresponds in the Tetragonal system to the Tetrahedral class in the Isometric System. It is characterized by the following symmetry: The three crystallographic axes are axes of binary symmetry, and there are two vertical diagonal planes of symmetry." — Ford, 1912

Symmetry of Sphenoidal class

"The Sphenoidal Class corresponds in the Tetragonal system to the Tetrahedral class in the Isometric…

"The symmetry of the Normal Class of the Hexagonal System is as follows: The vertical crystallographic axis is an axis of hexagonal symmetry. There are six horizontal axes of binary symmetry, three of them being coincident with the crystallographic axes and the other three lying midway between them." — Ford, 1912

Symmetry of normal class

"The symmetry of the Normal Class of the Hexagonal System is as follows: The vertical crystallographic…

"The symmetry of the Monoclinic System is as follows: The crystallographic axis b is an axis of binary symmetry and the plane of the a and c axes is a plane of symmetry." — Ford, 1912

Symmetry of monoclinic system

"The symmetry of the Monoclinic System is as follows: The crystallographic axis b is an axis of binary…

"The third sign of the zodiac, so named from its 2 brightest stars, Castor, of the 1st magnitude, farthest to the west, and Pollux of the 2d, farthest to the east. Its constitutent stars form a binary system revolving in about 250 years. The sun is in G. from about May 21st, till about June 21st." — Williams, 1889

Gemini

"The third sign of the zodiac, so named from its 2 brightest stars, Castor, of the 1st magnitude, farthest…

"Soft unsegmented bodies, bilaterally symmetrical, enveloped by a leathery mantle, which usually develops a hard shell-covering, or external skeleton; a symmetrical nervous system, consisting of several connected nerve bunches, or ganglia. Such is the snail." — Hinman, 1888

Snail

"Soft unsegmented bodies, bilaterally symmetrical, enveloped by a leathery mantle, which usually develops…

"Bilaterally symmetrical bodies composed of a series of rings or segments, each of which bears a pair of jointed appendages, or limbs; a well developed and symmetrical nervous system of many connected ganglia. The lower arthropoda are the crustaceans, such as the lobster." — Hinman, 1888

Lobster

"Bilaterally symmetrical bodies composed of a series of rings or segments, each of which bears a pair…

In the United States, a patroon was a landholder with manorial rights to large tracts of land in the 17th century Dutch colony of New Netherland in North America. Through the Charter of Freedoms and Exemptions of 1629, the Dutch West India Company first started to grant this title and land to some of its invested members. The deeded tracts were called patroonships and could span 16 miles in length on one side of a major river, or 8 miles if spanning both sides. After the English takeover of New Netherland in 1664, the system continued with the granting of large tracts known as manors, and sometimes referred to as patroonships.

A Dutch Patroon

In the United States, a patroon was a landholder with manorial rights to large tracts of land in the…

An example of our judicial system, a trial in progress.

Trial

An example of our judicial system, a trial in progress.

Two glands having the function of secreting urine from the system, situated at the back of the abdominal cavity, one on each side of the vertebral column.

Kidney

Two glands having the function of secreting urine from the system, situated at the back of the abdominal…

"The Druidical system was at the height of at the time of the Roman invasion uner Julius Caesar. Against the Druids, as their chief enemies, these conquerors of the world directed their unsparing fury. The Druids, harassed at all points on the mainland, retreated to Anglesey and ona, where for a season they found shelter and continued their now dishonoured rites." —Bulfinch, 1897

Druids

"The Druidical system was at the height of at the time of the Roman invasion uner Julius Caesar. Against…

"Part of the nervous system viewed in front." —Davison, 1910

Nervous System

"Part of the nervous system viewed in front." —Davison, 1910

"Part of the sympathetic nervous system seen from in front, n, one of the two chief cords, t, i, and p, branches to organs." —Davison, 1910

Sympathetic Nervous System

"Part of the sympathetic nervous system seen from in front, n, one of the two chief cords, t, i, and…

"Diagram of the main parts of a sewerage system." —Kinne, 1920

Sewerage system

"Diagram of the main parts of a sewerage system." —Kinne, 1920

Part of the nervous system viewed from in front.

Nervous System

Part of the nervous system viewed from in front.

The portal system of veins. a: Portal vein. b: Splenic vein. c: Right gastro-epiploic vein. d: Inferior mesenteric vein. e: Superior mesenteric vein. f: Trunk of the superior mesenteric artery. 1: Liver. 2: Stomach. 3: Spleen. 4: Pancreas. 5: Duodenum. 6: Ascending colon; the transverse colon is removed. 7: Small intestine. 8: Descending colon.

Veins

The portal system of veins. a: Portal vein. b: Splenic vein. c: Right gastro-epiploic vein. d: Inferior…

1: Left ventricle of the heart. 2 and 3: Aorta. 5: Arteries that extend to the lower extremities. 6: Arteries of the neck. 7: Arteries of the arms.

Circulatory

1: Left ventricle of the heart. 2 and 3: Aorta. 5: Arteries that extend to the lower extremities. 6:…

1: Right auricle of the heart. 2 and 3: Large veins that open into the right auricle. 4: Veins of the lower extremities. 5: Veins of the arms. 6: Veins of the neck.

Circulatory

1: Right auricle of the heart. 2 and 3: Large veins that open into the right auricle. 4: Veins of the…

A city in Italy, capital of a province of the same name, on the Arno River, forty-four miles west of Florence. it has well platted and paved streets, and is connected with Leghorn, Florence, and other cities by an extensive railway system.

Pisa

A city in Italy, capital of a province of the same name, on the Arno River, forty-four miles west of…

An educator and inventor of the Pitman system of shorthand writing, born in Trowbridge, England, Jan. 4, 1813; died Jan. 22, 1897.

Sir Isaac Pitman

An educator and inventor of the Pitman system of shorthand writing, born in Trowbridge, England, Jan.…

The framework of animals, which in vertebrates is composed of bone and cartilage. It serves to support the fleshy parts and the nervous system, and forms levers for the muscles.

Skeleton

The framework of animals, which in vertebrates is composed of bone and cartilage. It serves to support…

In aromatic warmth and pegency cubebs are far inferior to the pepper; but they are much valued in diseases o the urinary system and of the bronchial tubes.

Cubeb

In aromatic warmth and pegency cubebs are far inferior to the pepper; but they are much valued in diseases…

In this Turbellarian the digestive tract (d.t.) is a blind sac. st., boundary of stomodaeum and mesenteron; c, cilia; g, ganglion (brain); g', ganglion of a new individual which is being formed by fission; o, mouth; o', mouth of new individual in process of formation; w, excretory system.

Stenostoma

In this Turbellarian the digestive tract (d.t.) is a blind sac. st., boundary of stomodaeum and mesenteron;…

This illustration shows a representation of the circulation of the blood, in its essential features. The arrows indicate the course of the blood. a, arteries; aur., auricle or receiving portion of the heart; d, digestive tract; c. d., capillaries of the digestive tract; c.r., capillaries of the respiratory organs; c.s., capillaries of the system; va., valves; ve, veins; vt, ventricle.

Blood Circulation

This illustration shows a representation of the circulation of the blood, in its essential features.…

This illustration shows a representation of the circulation of the blood, in its essential features. The arrows indicate the course of the blood. a, arteries; aur., auricle or receiving portion of the heart; d, digestive tract; c. d., capillaries of the digestive tract; c.r., capillaries of the respiratory organs; c.s., capillaries of the system; va., valves; ve, veins; vt, ventricle.

Nephridium

This illustration shows a representation of the circulation of the blood, in its essential features.…

This is a diagram of transverse section of a Turbellarian through the region of the mouth. d.m., dermo-muscular wall containing longitudinal fibres; ex, excretory system; f, flame cells; g, gut; l.c., lateral nerve cord; m, mouth; m.f., muscle fibres; ph., pharynx; t, testis; u, uterus; y, yolk glands.

Turbellarian

This is a diagram of transverse section of a Turbellarian through the region of the mouth. d.m., dermo-muscular…

This diagram shows a portion of the water-vascular system of the starfish. a, ampullae; f, ambulacral feet; m, madreporic body; p, polian vesicles; r.c., ring canal, with the upper portion removed at the right of the figure; r.t., radical water tubes; s, stone canal.

Starfish

This diagram shows a portion of the water-vascular system of the starfish. a, ampullae; f, ambulacral…

This diagram shows the longitudinal section of the anterior end of the annelid. A, sagittal section; B, frontal section to show anterior portion of nervous system. b, brain; co., nervous collar about the mouth; c.v., contractile blood vessels; d, dissepiment; d.m., dermo-muscular wall; d.v., dorsal blood vessel; m, mouth; n.c., nerve cells; n.f., nerve fibers; np., nephridia; p, prostomium; ph., pharynx; s, setae; sn., segmental nerves; v.g, ventral chain of fanglia; v.v., ventral blood vessel. Only a portion of the blood vascular system is shown, and this appears unsectioned in the figure.

Annelid

This diagram shows the longitudinal section of the anterior end of the annelid. A, sagittal section;…

This illustration shows a side view of the human skeleton.

Human Skeleton

This illustration shows a side view of the human skeleton.

This illustration shows a front view of the human skeleton.

Human Skeleton

This illustration shows a front view of the human skeleton.

An ideal view of the circulation in the lungs and system.

Circulation

An ideal view of the circulation in the lungs and system.

A diagram of the digestive system.

Digestive System

A diagram of the digestive system.

Diagram of a low-tension ignition system. A is the battery, B is a spark coil, and C, D, and E are the elements of a make-and-break device that is mechanically actuated at regular intervals by the motor itself to produce the sparks within the cylinder.

Ignition System

Diagram of a low-tension ignition system. A is the battery, B is a spark coil, and C, D, and E are the…

Four-cylinder low-tension ignition system.

Ignition System

Four-cylinder low-tension ignition system.

Diagram of a high-tension ignition system. A is the source of current, usually a batter in earlier days, as indicated by the conventional sign, placed in a primary circuit that also includes the contact maker C, the primary winding of the coil B, and the vibrator G.

High-Tension Ignition System

Diagram of a high-tension ignition system. A is the source of current, usually a batter in earlier days,…

Wiring diagram of non-vibrator high-tension system.

High-Tension System

Wiring diagram of non-vibrator high-tension system.

A diagram showing hydraulic analogy of ignition system.

Ignition System

A diagram showing hydraulic analogy of ignition system.

Wiring diagram of high-tension magneto system.

Magneto System

Wiring diagram of high-tension magneto system.

A solid belonging to the isometric system, with 24 trapezoidal planes. It is the parallel hemihedral form of the hexoctahedron.

Diploid

A solid belonging to the isometric system, with 24 trapezoidal planes. It is the parallel hemihedral…

A wiring diagram of Magneto and Coil in the Remy Dual System.

Remy Dual System

A wiring diagram of Magneto and Coil in the Remy Dual System.

Wiring diagram of the Bosch Duplex Ignition System.

Ignition System

Wiring diagram of the Bosch Duplex Ignition System.

Wiring diagram of the Ford Ignition System.

Ignition System

Wiring diagram of the Ford Ignition System.

A wiring diagram for Connecticut Ignition System.

Ignition System

A wiring diagram for Connecticut Ignition System.

Essentials of battery ignition system.

Ignition System

Essentials of battery ignition system.

Wiring diagram for Delco Single-Unit Single-Wire System.

Single-Wire System

Wiring diagram for Delco Single-Unit Single-Wire System.

Wiring diagram for the Delco Single-Unit system on the Auburn Six-40.

Auburn Six-40

Wiring diagram for the Delco Single-Unit system on the Auburn Six-40.

Wiring diagram for auto-lite system on Chevrolet (Royal Mail and Baby Grand Models) showing two-wire connections.

Auto-Lite System

Wiring diagram for auto-lite system on Chevrolet (Royal Mail and Baby Grand Models) showing two-wire…

Wiring diagram for Bijur two-wire system on the Jeffery Chesterfield Six (1916 model).

Jeffery Chesterfield Six

Wiring diagram for Bijur two-wire system on the Jeffery Chesterfield Six (1916 model).

Auto-lite ignition, starting, and lighting system on Briscoe 1917 motor cars.

Ignition

Auto-lite ignition, starting, and lighting system on Briscoe 1917 motor cars.

Auto-lite single-wire starting and lighting system for Chevrolet 490 cars.

Starting System

Auto-lite single-wire starting and lighting system for Chevrolet 490 cars.

Auto-lite starting and lighting system on the Chevrolet, Model F.

Starting System

Auto-lite starting and lighting system on the Chevrolet, Model F.