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22 one word: the first, in this case, an iamb; the second, an amphibrachys; the third, a trochee; and the fourth, an amphimacer; and yet our schoolboy, with no other liberty but that of inflicting pain, had triumphantly scanned it as five iambs. Perceive, now, this fresh richness of intricacy in the web; this fourth orange, hitherto unremarked, but still kept flying with the others. What had seemed to be one thing it now appears is two; and, like some puzzle in arithmetic, the verse is made at the same time to read in fives and to read in fours.

But again, four is not necessary. We do not, indeed, find verses in six groups, because there is not room for six in the ten syllables; and we do not find verses of two, because one of the main distinctions of verse from prose resides in the comparative shortness of the group; but it is even common to find verses of three. Five is the one forbidden number; because