The fourth dimension

262 THE FOURTH DIMENSION

By using a more extended sequence of consonants and vowels a larger set of cubes can be named.

To name a four-dimensional block of tesseracts it is simply necessary to prefix an “e,” an “a,” or an “i” to the cube names.

Thus the tesseract blocks schematically represented on page 165, fig. 101 are named as follows :-—

2. DERIVATION OF Pornt, Lint, Face, EtC., NAMEs.

The principle of derivation can be shown as follows: Taking the square of squares