I
Symmetry
Groups

II
Point
Groups

1
Basic Operations
2

2
How Operations
Generate
Themselves
10

3
Point Groups
18

4
The Asymmetric
Motif: Group 1
22

5
Bilateral Sym-
metry: Group m
28

6
Playing Cards
and Walnuts:
Groups 2 and
2mm
38

7
The Triskelion
and the Green
Pepper: Groups 3
and 3m
52

8
The Swastika and
the Greek Cross:
Groups 4 and
4mm
58

12
Ducks in a Row:
Group t
96

13
Friday's Foot-
prints: Group tg
106

14
Reflected
Reflections:
Group tm
118

15
Reflected Sails:
Group mt
126

16
Grand Right and
Left: Group t2
136

17
Reflected Whirls:
Group t2mg
148

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