Many English nouns in -is form their plurals in -es.

Where trees allowed glimpses, the hills above were purple-black, the snowcaps in the distance moltenly aglow.

It is not surprising, therefore, that most children choose the flying monkey in preference to the roarless lion as their theme for imaginative story writing.

The structure of the symmetry group of a molecule affects several spectroscopic aspects and vice versa. Thus, it is clearly important to know the possible symmetries of fullerenes and similar structures. In this chapter, we study symmetry groups of fulleroids.