"Diagram of inclined carbon-flame arc lamp." —Croft 1917

Carbon Flame Arc Lamp

"Diagram of inclined carbon-flame arc lamp." —Croft 1917

Diagrammatic section showing artesian conditions in Sulphur Spring Valley.

Artesian Conditions in Sulphur Spring Valley

Diagrammatic section showing artesian conditions in Sulphur Spring Valley.

"represents a section of an island, from the ocean (o) to the lagoon (l). On the ocean side, from o to a, there is shallow water for some distance out; and where not too deep, the bottom is covered here and there with growing corals. Between a and b there is a platform of coral rock, mostly bare at low tide, but covered at high ... b to d is the wooded portion of the island. The whole width (is) from the beach (b) to the lagoon (c)." -Dana, 1880

Section of Coral Island of an Atoll

"represents a section of an island, from the ocean (o) to the lagoon (l). On the ocean side, from o…

Diagram showing all of the different axes of symmetry of a cube.

Axes of Symmetry of a Cube

Diagram showing all of the different axes of symmetry of a cube.

A diagram showing the muscular cycle form by the biceps or flexor muscle, and the triceps or extensor muscle of the human arm.

Muscular Cycle of the Biceps

A diagram showing the muscular cycle form by the biceps or flexor muscle, and the triceps or extensor…

"Ventilating a barn having a silo at or near the center. The fresh air enters at AB, and finds its way to the foul-air shaft CE, passing out through the cupola F. The ventilators, CE, are spaces in the walls around the silo."—The Federal Digest, 1921

Barn Blueprint

"Ventilating a barn having a silo at or near the center. The fresh air enters at AB, and finds its way…

Formation of Coral Reeds, according to Darwin.

Coral

Formation of Coral Reeds, according to Darwin.

Diagram of Delco Dynamotor for single-unit system.

Delco

Diagram of Delco Dynamotor for single-unit system.

A diagram of action of diffraction grating.

Diffraction grating

A diagram of action of diffraction grating.

Diagram showing the Horizontal Drying Machine threaded with cloth

Drying Machine Diagram

Diagram showing the Horizontal Drying Machine threaded with cloth

Diagram showing the Horizontal Drying Machine threaded with cloth

Drying Machine Diagram

Diagram showing the Horizontal Drying Machine threaded with cloth

Electrical diagram for Gray & Davis starting and lighting installation on the Peerless, Model 56.

Electrical Diagram

Electrical diagram for Gray & Davis starting and lighting installation on the Peerless, Model 56.

"Diagram showing a reverse or overthrust fault (b)." -Lee, 1915

Reverse Fault

"Diagram showing a reverse or overthrust fault (b)." -Lee, 1915

Diagram illustrating the offset of strata produced by vertical slipping along an inclined plane, when the fault is oblique with reference to the strata. The dotted outline restores the fault scarp and gives the appearance immediately after faulting, before erosion has removed this portion of the block.

Thrust Fault Diagram

Diagram illustrating the offset of strata produced by vertical slipping along an inclined plane, when…

Diagram illustrating various types of fault.

Various Types of Fault

Diagram illustrating various types of fault.

"Diagram showing normal faults (a)." -Lee, 1915

Normal Faults

"Diagram showing normal faults (a)." -Lee, 1915

A diagram showing the motions a young frog makes while swimming. In this stage of life, the frog makes ellipses in order to move through the water.

Ellipses of Swimming Frog

A diagram showing the motions a young frog makes while swimming. In this stage of life, the frog makes…

A diagram showing the motions a young frog makes whilst swimming. In this stage of the frog's life, the frog uses looping motions to move through the water.

Loops of Swimming Frog

A diagram showing the motions a young frog makes whilst swimming. In this stage of the frog's life,…

"The part of any solid between two planes, which may be either parallel or inclined to each other: as, the frustum of a cone ... In the figure the dotted line, c, indicates the part of the cone cut off to form the frustum, f." -Whitney, 1911

Frustum of a Cone

"The part of any solid between two planes, which may be either parallel or inclined to each other: as,…

"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." —Davison, 1910

Gland

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

"Vertical Section of the Great pyramid, looking West showingA. Entrance passage.       B. A later opening.D. First ascending passage. E. Horizontal Passage.F. Queen's chamber.G G. Grand gallery.H. Antechamber.I. Coffer.K. King's chamber.M N. Ventilating chambers.O. Subterranean chamber.P. Well, so-called.R R R. Probable extent to which the native rock is employed to assist the masonry of the building." - West, 1904

Vertical section of the Great Pyramid

"Vertical Section of the Great pyramid, looking West showing A. Entrance passage. B. A later opening. D.…

A diagram of a hockey field.

Hockey Field

A diagram of a hockey field.

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.

Diagram of earlier model of Delco Interrupter.

Interrupter

Diagram of earlier model of Delco Interrupter.

Diagram illustrating an irrigation system.

Irrigation system

Diagram illustrating an irrigation system.

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

Kidney

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

A sketch of the country side.

Landscape Sketch

A sketch of the country side.

"Diagram showing how the lens changes its form for near and far sight." — Tracy, 1888

Eye lens

"Diagram showing how the lens changes its form for near and far sight." — Tracy, 1888

"The most common and, for many purposes, the most convenient form of condenser is the Leyden jar. This consists of a glass jar, coated within and without for about two-thirds its height with tinfoil, and a metallic rod that communicates by means of a small chain with the inner coat, and terminates above in a knob or a disk." — Avery, 1895

Diagram of a Leyden jar

"The most common and, for many purposes, the most convenient form of condenser is the Leyden jar. This…

A diagram of the box occupied by President Lincoln in the Ford Theater when he was assassinated.

Diagram of Box Occupied by President Lincoln in Theatre

A diagram of the box occupied by President Lincoln in the Ford Theater when he was assassinated.

Machine screw diagram

Machine Screw

Machine screw diagram

Machine screw diagram

Machine Screw

Machine screw diagram

Machine screw diagram

Machine Screw

Machine screw diagram

Machine screw diagram

Machine Screw

Machine screw diagram

"Diagram of a Sectional View of Nasal and Throat Passageways. <em>C</em>, nasal cavities; <em>T</em>, tongue; <em>L</em>, lower jaw; <em>M</em>, Mouth; <em>U</em>, uvula; <em>E</em>, epiglottis; <em>G</em>, larynx; <em>O</em>, gullet, or esophagus." &mdash; Blaisedell, 1904

Nasal and throat passageways

"Diagram of a Sectional View of Nasal and Throat Passageways. C, nasal cavities; T,…

Oscillograph diagram of primary and secondary currents.

Oscillograph

Oscillograph diagram of primary and secondary currents.

One peculiarity is visible in all Assyrian buildings, namely, that all the chambers are very narrow in proportion to their length. It may, however, be accepted as established that the chambers were in general lighted by windows, which were inserted in the walls either high up or immediately under the roof, and that only large halls received their light from above through openings in the roof.

Floor Plan of the Palace at Nimrud

One peculiarity is visible in all Assyrian buildings, namely, that all the chambers are very narrow…

Diagram illustrating the formation of phacoliths.

Phacoliths

Diagram illustrating the formation of phacoliths.

Diagram showing how plants fill ponds from the sides and top.

Pond Diagram

Diagram showing how plants fill ponds from the sides and top.

"Diagram illustrating the disadvantage of an oblique pull." &mdash; Martin, 1917

Oblique pull

"Diagram illustrating the disadvantage of an oblique pull." — Martin, 1917

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.

Diagram of a rifle.

Diagram of a rifle

Diagram of a rifle.

"Diagrammatic structure section of the Wasatch Range in Ogden Canyon." -Lee, 1915

Rock Layers Showing Geological Periods

"Diagrammatic structure section of the Wasatch Range in Ogden Canyon." -Lee, 1915

"Cross section of Marsh Creek valley at McCammon, Idaho." -Lee, 1915

Rock Layers Showing Types of Rock

"Cross section of Marsh Creek valley at McCammon, Idaho." -Lee, 1915

Diagram showing the interrelations of the Endogenetic rocks.

Endogenetic Rocks

Diagram showing the interrelations of the Endogenetic rocks.

A diagram of the interrelations of the Exogenetic rocks.

Exogenetic Rocks

A diagram of the interrelations of the Exogenetic rocks.

A diagram of a prolific rose illustrating: s, Sephals transformed into leaves; p, Petals multiplied at the expense of the stamens which are reduced in number; c, Colored leaves representing abortive carpels; and a, Axis prolonged, bearing an imperfect flower at its apex.

Proliferous Rose

A diagram of a prolific rose illustrating: s, Sephals transformed into leaves; p, Petals multiplied…

"Nodal Cubic, with four primary lines and their satellite. In the diagram, ABC is the satellite line. From its intersections with the cubic curve tangents are drawn to the latter, AD, AE, BF, BG, CH, CI. The points of tangency lie three by three on four primary lines, FDH, DGI, EGH, FEI." -Whitney, 1911

Satellite

"Nodal Cubic, with four primary lines and their satellite. In the diagram, ABC is the satellite line.…

A diagram illlustrating the principal of the screw.

Diagram of a Screw

A diagram illlustrating the principal of the screw.

"In meteorology, a subsidiary cyclonic circulation, generally on the border of a primary cyclone accompanied by rain, thunder-storms, and squalls: indicated on a weather-map by the bulging of a sea-level isobar toward the region of higher pressure." -Whitney, 1911

Secondary

"In meteorology, a subsidiary cyclonic circulation, generally on the border of a primary cyclone accompanied…

A diagram of a septic tank.

Septic tank

A diagram of a septic tank.

A diagram of ground or short circuit.

Short Circuit

A diagram of ground or short circuit.

"The valve gear for operating the steam hammer is shown separately, the cylinder and valve chest being in section."&mdash;Finley, 1917

Valve gear of a steam hammer

"The valve gear for operating the steam hammer is shown separately, the cylinder and valve chest being…

"The parts are the butt, A; small, B; magazine well, C; barrel bed, D; air chamber, E, which reduces the charring effect og a heater barrel on the stock; small butt plate screw hole and seat for the butt plate tang, F; butt swivel plate seat, G; mortise for receiver tang lug and hole for rear guard screw, H; mortise for sear and slot for trigger, I; cut-off thumb-piece recess, J; mortise for recoil on the receiver, K; bed for fixed base, L; grasping grooves, N; shoulder for lower band, O; bed for band spring, P; shoulder for upper band, Q; channels for decreasing weight, R; upper band screw hole, S; and the stock screw hole, T. The large hole in butt is for decreasing weight, and the smaller one is a pocket for the combination oiler and thong case." &mdash; Moss, 1914

Stock, right side view

"The parts are the butt, A; small, B; magazine well, C; barrel bed, D; air chamber, E, which reduces…

"The parts are the butt, A; small, B; magazine well, C; barrel bed, D; air chamber, E, which reduces the charring effect og a heater barrel on the stock; small butt plate screw hole and seat for the butt plate tang, F; butt swivel plate seat, G; mortise for receiver tang lug and hole for rear guard screw, H; mortise for sear and slot for trigger, I; cut-off thumb-piece recess, J; mortise for recoil on the receiver, K; bed for fixed base, L; grasping grooves, N; shoulder for lower band, O; bed for band spring, P; shoulder for upper band, Q; channels for decreasing weight, R; upper band screw hole, S; and the stock screw hole, T. The large hole in butt is for decreasing weight, and the smaller one is a pocket for the combination oiler and thong case." &mdash; Moss, 1914

Stock, top view

"The parts are the butt, A; small, B; magazine well, C; barrel bed, D; air chamber, E, which reduces…

"The overhead movement enables the swimmer to throw himself forward on the water, and to move his arms and legs in a nearly vertical instead of a horizontal plane; the extremities working, as it were, above and beneath the trunk, rather than on either side of it."&mdash;Pettigrew, 1874

Overhand Swimming

"The overhead movement enables the swimmer to throw himself forward on the water, and to move his arms…

"An improvement on the foregoing for long distances is the known as the side stroke. In this method, as the term indicates, the body is thrown more decidedly upon the side."&mdash;Pettigrew, 1874

Side-Stroke Swimming

"An improvement on the foregoing for long distances is the known as the side stroke. In this method,…

"The theatre was essentially like the Grecian in its arrangement; it formed a semicircle with seats rising in the form of an amphitheatre for the spectators, at the chord of which was the stage, with its permanent decorations."

Ground Plan of the Theatre at Pompeii

"The theatre was essentially like the Grecian in its arrangement; it formed a semicircle with seats…

A diagram illustrating one type of time-limit relay.
Diagrammatic drawing of a time-limit circuit breaker.

Time Limit

A diagram illustrating one type of time-limit relay. Diagrammatic drawing of a time-limit circuit breaker.