ISOMETRICA

A GEOMETRICAL INTRODUCTION TO

PLANAR CRYSTALLOGRAPHIC GROUPS

in memory of Professor Rinaldo Prisco

Fig. 28 Intersecting glide llines

[Arthur L. Loeb, Color and Symmetry (Wiley 1971, Krieger 1978)]

GEORGE BALOGLOU

SUNY OSWEGO, 2007

ISBN 978-0-9792076-0-0

p6m reduced to p31m' by coloring

In the course of his inexplicable existence

But when am I going to feel that its darkness

man bequeathed to his descendants multiple evidence

is full of signs,

worthy of his immortal origin

that I know nothing about its soul's journeys

As he also bequathed vestiges of the dawn's remnants,

into the magic, the profound, the luminous,

snowballing celestial reptiles, kites, diamonds

the impossible

and glances of hyacinths

From Zelda Schneurson-Mishkovsky's "In an old School for the Blind"

(and/or Amos Oz's "A Tale of Love and Darkness")

From Nikos Gatsos' "Amorgos"

Library of Congress TXu1-354-887