Axes showing trigonometric angles, and quadrants.

### Ax

An ax, from Prehistoric man.

### Ax

An iron tool with a steel edge, for hewing and chopping.

An ax of flint.

### Axes of Symmetry of a Cube

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

### Four Axes

An illustration of four various axes: "1, Horseman's hammer of about the time of Edward IV; 2, Martel-de-fer,…

### Rectangular Axes

Transforming from one set of rectangular axes to another with the same origin, but different direction.

### Bronze Age Bronze Celts

Three bronze celts (axes). Not drawn to scale.

### Conic Axes

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the…

### Bronze Age Copper Axes

Copper axes from the Bronze age. Not drawn to scale.

### Crystallographic Axes of Reference

"...take any three edges formed by the intersection of three faces of a crystal. These axes are called…

### Cube

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Ellipse With Axes

Illustration of an ellipse with major and minor axes.

### Construction Of Ellipse

Illustration used to show how to draw an ellipse when given the diameters.

### Construction Of Ellipse

Illustration used to show how to draw an ellipse by circular arcs.

### Construction of an Ellipse

Diagram showing how to construct an ellipse when given the two foci and the length of the major axis…

### 2 Ellipses With Equal Vertical Axes

An illustration of 2 ellipses that have the equal vertical axes, but different horizontal axes. The…

### 2 Ellipses With Equal Vertical Axes

An illustration of 2 ellipses that have the equal vertical axes, but different horizontal axes. The…

### 3 Concentric Ellipses

An illustration of 3 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 3 Concentric Ellipses

An illustration of 3 concentric ellipses that are tangent at the end points of the vertical axes, which…

### 3 Concentric Ellipses

An illustration of 3 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 4 Concentric Ellipses

An illustration of 4 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 4 Concentric Ellipses

An illustration of 4 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 4 Concentric Ellipses

An illustration of 4 concentric ellipses that are tangent at the end points of the vertical axes, which…

### 5 Concentric Ellipses

An illustration of 5 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 5 Concentric Ellipses

An illustration of 5 concentric ellipses that are tangent at the end points of the vertical axes, which…

### 6 Concentric Ellipses

An illustration of 6 concentric ellipses that are tangent at the end points of the vertical axes. The…

### 6 Concentric Ellipses

An illustration of 6 concentric ellipses that are tangent at the end points of the vertical axes, which…

### First Right Square Octahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### First Right Square Prism

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Hatchet

A small axe with a short handle, to be used with one hand.

### Hemimorphism in the Direction of the Vertical Axis

Hemimorphism in the direction of the vertical axis has been observed on crystals of the tetragonal salt,…

### Construction of a Hyperbola

Diagram showing how to construct a hyperbola when given the two foci and the length of the major axis…

### Mattock

A kind of pick-axe, having the iron ends broad, instead of pointed.

### Monoclinic Axes and Hemi-pyramid

"Prisims with edges parallel to neither of the axes OX and OY...are usually called hemi-pyramids." -The…

### Construction Of Oval

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

### Orthohombie prism

"Crystal faces are described according to their relations to the crystallographic axes. A series of…

### Orthorhombie pyramid

"Crystal faces are described according to their relations to the crystallographic axes. A series of…

### Symmetry of pyritohedral class

"The symmetry of the Pyritohedral class is as follows: The three crystal axes of binary symmetry; the…

### Regular Octahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Regular Tetrahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Rhombic Dodecahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Second Right Square Octahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Second Right Square Prism

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

### Shoe Block

"Nautically, a block with two sheaves, whose axes are at right angles to each other, used for the buntlines…

### Neolithic Implements Stone and Horn Ax and Hammer

Stone and horn ax and hammer. A Neolithic age implement. Not drawn to scale.

### Symmetry of tetrahedral class

"The symmetry of this class is as follows: The three crystallographic axes are axes of binary symmetry;…

### Transform Coordinates

Transformation of coordinates to new axes.

### Umbels

"Umbel is formed when the secondary axes originate from the same point on the stem, and rise to nearly…