### Construction Of Oval

Illustration used to show how to draw an egg-shaped oval when given the diameters.

### Conic Section Showing Parabola

Illustration showing the definition of a parabola as a conic section. "The section of a right circular…

### Conic Section Showing Parabola

Illustration showing the definition of a parabola as a conic section. "The section of a right circular…

### Conic Section Showing A Parabola

Illustration showing the definition of a parabola as a conic section. The section of a right circular…

### Conic Section Showing A Parabola

An illustration showing the intersection of a plane and a cone. The cone is intersected by a plane parallel…

### Construction Of Parabola

Illustration used to show how to draw a parabola when the axis and longest double ordinate is given.

### Parabola With Coordinates and Latus Rectum

Illustration of a parabola showing that any point of a parabola is the mean proportional between the…

### Parabola With Focus and Directrix

Illustration of a parabola - a curve which is the locus of a point that moves in a plane so that its…

### Parabola With Focus and Directrix

Illustration of a parabola - a curve which is the locus of a point that moves in a plane so that its…

### Point on Parabola

Illustration of a parabola showing point P is equidistant to the focus and the directrix.

### Point on Parabola

Illustration of a parabola. "If a line PT is drawn from any point P of the curve, bisecting the angle…

### Tangent to a Parabola

Illustration of a tangent line drawn from an external point to a parabola.

### Tangents and Chords of a Parabola

Illustration showing that the area of a parabolic segment made by a chord is two thirds the area of…

### Tangents to a Parabola

Illustration showing that if two tangents RP and RQ are drawn from a point R to a parabola, the line…

### Jalousie de Fontenay Vendee Pear

Illustration of a cross section of a Jalousie de Fontenay Vendee pear.

### Cross section of a Portugal Quince Pear

An illustration of the cross section of a Portugal quince pear.

### Washington Pear

Illustration of a cross section of a Washington pear.

### Cross Section of Pipe

Cross section of pipe, 2 concentric circles

### Section of primrose succisa fruit

A section of the fruit of the primrose succisa, scabious succisa.

### Pulpit Rock Sections

Parallel vertical or columnar sections on the face of Pulpit Rock, near Colorado Springs, through identical…

### Purifier

"Section of Lime Purifier." — Encyclopedia Britannica, 1893

### Section

Signal to inform the troops that the next signal will be directed at a certain 'section' rather than…

### Raking Shore

"Section and part elevation of a raking shore."—Finley, 1917

### Section of a Spinal Cord

"Diagrammatic section of spinal cord in cervical region."—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…

### Striped Muscle

"1, longitudinal section; 2, 3, 4, cross section; 5, detached disk; 7, 8, fibrillae." — Richardson,…

### Section of Vertebra

A section of a human vertebra, showing structure.

### Villus

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

### Alcyonarian Zooid

"Transverse section of an Alcyonarian zooid. mm, mesenteries; mb, muscle banners; sc, sulcus; st, stomodaeum."…