The colored icosahedron with five circumscribed tetrahedra.
The compound of five cubes.
An outside view of the dodecahedron with the five inscribed cubes.
Illustration for elliptic curves I. (Color Plate 1B)
Illustration for elliptic curves II. (Color Plate 1B)
The Riemann surfaces of complex square and cubic roots. (Color Plates 3A-3B)
A two-holed torus
Graph of the real part of the complex exponential function.
Graph of the commplex argument function. (Color Plate 2B)
The projective plane by cutting-and-pasting. (Color Plate 4B)
Ordinary point on a projective plane.
Ideal point on a projective plane.
The Klein Bottle. (Color Plate 4A)
The Klein Bottle,another view.
A flag in a dodecahedron.
Bimbo's lozenge
A pair of reciprocal tetrahedra (Color Plate 5A)
The cube and the reciprocal octahedron.
The reciprocal pair of an icosahedron and a dodecahedron (Color Plate 5C).
The reciprocal pair of an icosahedron and a dodecahedron, another view.
The octahedral intersection of a dual pair of tetrahedra (Color Plate 6).
Construction of the dodecahedron.
A symmetry plane of the tetrahedron.
Two symmetry planes of the tetrahedron I.
Two symmetry planes of the tetrahedron II.
Two symmetry planes of the tetrahedron III.
The cuboctahedron.
The icosidodecahedron.
The colored icosahedron (Color Plate 7).
The colored icosahedron with one circumscribed tetrahedron.
The colored icosahedron with two circumscribed tetrahedra.
The colored icosahedron with five circumscribed tetrahedra.
The compound of five tetrahedra.
The compound of five tetrahedra in steelframe.
The Archimedes' spiral in a golden rectangle.
Seashell built on an Archimedean spiral.
The icosahedron with one golden rectangle.
The three golden rectangles.
The icosahedron, the three golden rectangles, and the circumscribed octahedra .
Space filling by octahedra and tetrahedra (enrichment).
Space filling by truncated octahedra (enrichment).
Illustration to Problem 16 (Carbon 60).
Illustration to Problem 18.
Illustration to Problem 20, I.
Illustration to Problem 20, II (Color Plate 9).
Illustration to Problem 20, III.
Illustration to Problem 20, IV.
Illustration to Problem 20, V.
Illustration to Problem 20, VI.
Illustration to Problem 20, VII
The Roman surface.
Construction of the Boy's surface I.
Construction of the Boy's surface II.
Construction of the Boy's surface III
Construction of the Boy's surface IV.
Construction of the Boy's surface V.
Construction of the Boy's surface VI.
Construction of the Boy's surface VII
Hamiltonian cycle on a dodecahedron.
The Clifford decomposition of the 3-sphere (Color Plate 10).
The binary icosahedral group on the Clifford tori (enrichment).
The Klein Bottle (Color Plate 11).
The transparent Klein Bottle.
