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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.

This illustration shows a famous Roman statue in front of some Roman architecture.

Rome Personified

This illustration shows a famous Roman statue in front of some Roman architecture.

A frontal view of the human muscles. The right half shows superficial muscles and the left half shows deep muscles.

Muscles

A frontal view of the human muscles. The right half shows superficial muscles and the left half shows…

A frontal view of the chest muscles. 1, sterno-hyoid; 2, sterno-mastoid; 3, sterno-thyroid; 4, sterno-mastoid; 5, trapezius; 6, clavicle; 7, origin pectoralis major; 8, deltoid; 9, lower edge pectoralis major; 10, middle pectoralis major; 11, fibres external oblique; 12, biceps; 13, teres major; 14, serratus major anticus; 15, external oblique interlocking with serratus major.

Chest Muscles

A frontal view of the chest muscles. 1, sterno-hyoid; 2, sterno-mastoid; 3, sterno-thyroid; 4, sterno-mastoid;…

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, biceps; 4, supinator longus; 5, extensor carpl radialis longior; 6, extensor carpi radialis brevior; 7, insertion of these mscles; 8, extensor communis digitorum; 9, extensor communis digitorum; 10, extensor carpi ulnaris; 11, anconeus; 12, flexor carpi ulnaris; 13, extensor minor pollicis; 14, extensor major pollicis; 15, posterior annular ligament.

Front Forearm Muscles

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, biceps; 4, supinator longus;…

The muscles of the front of the leg. 1, tendon of quadriceps; 2, spine tibia; 3, tibialis anticus; 4, extensor communis digitorum; 5, extensor proprius pollicis; 6, peroneus tertius; 7, peroneus longus; 8, peroneus brevis; 9, soleus; 10, gastrocnemius; 11, extensor brevis digitorum.

Leg Muscles

The muscles of the front of the leg. 1, tendon of quadriceps; 2, spine tibia; 3, tibialis anticus; 4,…

An interior view of the chemical telephone.

Chemical Telephone

An interior view of the chemical telephone.

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

Circulation

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

A view of the catcher in a game of baseball.

Catcher

A view of the catcher in a game of baseball.

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

Sphenoid Bone

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

Sphenoid Bone

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

Sphenoid Bone

A bone situated at the base of the skull in front of the temporals and basilar part of the occipital.

An anterior view of the left humerus.

Humerus

An anterior view of the left humerus.

An anterior view of the radius and ulna.

Radius and Ulna

An anterior view of the radius and ulna.

A posterior view of the radius and ulna.

Radius and Ulna

A posterior view of the radius and ulna.

A view of the left scaphoid seen from behind.

Left Scaphoid

A view of the left scaphoid seen from behind.

A view of the left scaphoid seen from in front.

Left Scaphoid

A view of the left scaphoid seen from in front.

A view of the left semilunar from the anterior and internal surfaces.

Left Semilunar

A view of the left semilunar from the anterior and internal surfaces.

A view of the left semilunar from the external surface.

Left Semilunar

A view of the left semilunar from the external surface.

The left trapezium as seen from the front.

Trapezium

The left trapezium as seen from the front.

The left trapezoid as seen from the front, below, and outer side.

Trapezoid

The left trapezoid as seen from the front, below, and outer side.

The anterior view of the articulations of the pelvis and hip.

Pelvis

The anterior view of the articulations of the pelvis and hip.

A anterior view of the ligaments of the wrist and hand.

Hand Ligaments

A anterior view of the ligaments of the wrist and hand.

A posterior view of the ligaments of the wrist and hand.

Hand Ligaments

A posterior view of the ligaments of the wrist and hand.

An anterior view of the right knee-joint.

Knee-joint

An anterior view of the right knee-joint.

An posterior view of the right knee-joint.

Knee-joint

An posterior view of the right knee-joint.

An internal view of the ankle-joint: tarsal and tarsometatarsal articulations.

Ankle-joint

An internal view of the ankle-joint: tarsal and tarsometatarsal articulations.

A top view of the human brain.

Brain

A top view of the human brain.

A frontal view of the cutaneous nerves of the right lower extremity.

Leg Nerves

A frontal view of the cutaneous nerves of the right lower extremity.

A frontal view of the nerves of the right lower extremity.

Leg Nerves

A frontal view of the nerves of the right lower extremity.

A posterior view of the cutaneous nerves of the right lower extremity.

Leg Nerves

A posterior view of the cutaneous nerves of the right lower extremity.

A posterior view of the nerves of the right lower extremity.

Leg Nerves

A posterior view of the nerves of the right lower extremity.

A side view of the thyroid and cricoid cartilages.

Thyroid

A side view of the thyroid and cricoid cartilages.

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,…

The front of a United States Dime. made out of silver and having a value of ten cents.

United States Dime

The front of a United States Dime. made out of silver and having a value of ten cents.

The front of a United States Dime. made out of silver and having a value of ten cents.

United States Dime

The front of a United States Dime. made out of silver and having a value of ten cents.

The stationary member of 12-cylinder splitdorf distributor.

Splitdorf Distributor

The stationary member of 12-cylinder splitdorf distributor.

End elevation and section of Dixie 4-Cylinder Magneto showing construction and connections.

Dixie 4-Cylinder Magneto

End elevation and section of Dixie 4-Cylinder Magneto showing construction and connections.

Bijur starting and lighting installation on King Eight-Cylinder Cars, Model EE.

Bijur

Bijur starting and lighting installation on King Eight-Cylinder Cars, Model EE.

Bijur starting and lighting installation on King Eight-Cylinder Cars, Model EE.

Bijur

Bijur starting and lighting installation on King Eight-Cylinder Cars, Model EE.

Delco starting and lighting installation on the Austin twelve-cylinder model.

Delco

Delco starting and lighting installation on the Austin twelve-cylinder model.

End view of Delco starting motor, showing commutator and brushes.

Delco

End view of Delco starting motor, showing commutator and brushes.

Front and reverse face of combination switch for Delco two-unit system.

Delco

Front and reverse face of combination switch for Delco two-unit system.

Delco starting and lighting installation on the Kissel, 1917 Twelve-Cylinder Model.

Delco

Delco starting and lighting installation on the Kissel, 1917 Twelve-Cylinder Model.

Delco ignition installation on National Twelve-Cylinder cars, series A-K.

Delco Installation

Delco ignition installation on National Twelve-Cylinder cars, series A-K.

Delco starting and lighting installation on the Pathfinder, 1917 Twelve-Cylinder Model.

Delco Installation

Delco starting and lighting installation on the Pathfinder, 1917 Twelve-Cylinder Model.

Sectional view showing details of Dyneto regulator-cut-out.

Dyneto

Sectional view showing details of Dyneto regulator-cut-out.

Capital letter T with the front door of a home.

T, Capital

Capital letter T with the front door of a home.

"Modes of forming mesoderm. A and B, special mesoblasts distinguishable early in egmentation (annelid): A, surface view from active pole; B, sectional view of same. ec, micromeres destined to form ectoderm; en, macromeres destined to form entoderm; m, primitive mesoblast which produces the mesoderm. C, amaeboid mesodermal cells (c) budding from entoderm into the segmentation cavity (s.c.), in an Echinoderm. a, archenteron." — Galloway

Mesoderm

"Modes of forming mesoderm. A and B, special mesoblasts distinguishable early in egmentation (annelid):…

"Diagram of the principal vessels in the circulation of a fish, ventral view. a, aorta; au., auricle; br.a., afferent branchial arteries; br.e., efferent branchial arteries; bu., bulbus (or conus) arteriosus; c, carotid; c.a., caudal artery; c.v.r., right cardinal vein; c.v.l., left cardinal vein; d.a., dorsal artery; d.c., ductus Cuvieri; g, gills; h.v., hepatic vein; h.p., hepatic portal vein; i, intestine; j, jugular vein; k, kidney; l, liver; r.p., renal portal vein; s.v., sinus venosus; v, ventricle." — Galloway

Fish Circulation

"Diagram of the principal vessels in the circulation of a fish, ventral view. a, aorta; au., auricle;…

A gold coin of the value of 10 or 11 shillings, current in England in the seventeenth century. It was first issued by James I. The front.

Double Crown

A gold coin of the value of 10 or 11 shillings, current in England in the seventeenth century. It was…

A distant view of Moqui, with sheep-pens in the foreground.

Moqui

A distant view of Moqui, with sheep-pens in the foreground.

View of the town of Cartagena during the time of Columbus.

Cartagena

View of the town of Cartagena during the time of Columbus.

View of Acapulco when Cortes explored it.

Acapulco

View of Acapulco when Cortes explored it.

The frontal view of a human face.

Human Head

The frontal view of a human face.

The rear view of a human face.

Human Head

The rear view of a human face.

Resoration view of Palenque, Mexico.

Palenque

Resoration view of Palenque, Mexico.