If the two accented syllables are not separated by an unaccented syllable, that is to say, if the two beats are in immediate juxtaposition, then either two unaccented syllables must stand after the second arsis, thus –́ | –́ × × (a form that occurs 120 times in _Beowulf_), or an unaccented syllable must precede the first arsis and one unaccented syllable must follow the second arsis, thus × –́ | –́ × (127 times in _Beowulf_), or with the second arsis short × –́ | ⏑́ × (257 times); the form –́ | –́ × does not occur. From these statistics it results that hemistichs of the form –́ × |–́ × are met with about 17 times to one occurrence of the form –́ × | ⏑́ ×, and that on the other hand, the form × –́ | ⏑́ × is about twice as frequent as × –́ | –́ ×. § =24. The order of the verse-members in the hemistich.= Every hemistich consists of two feet or measures, each containing an accented syllable. Usually these two feet or measures together contain four verse members, seldom five. In the hemistich of four members, which first falls to be considered, the measures may consist of two members each (2+2), or one may contain one member and the other three (1+3 or 3+1). A measure of one member has a single accented syllable only (–́); a measure of two members has an accented and an unaccented syllable, which may stand either in the order –́ × or × –́; a measure of three members has one accented and two unaccented syllables, one of which has a secondary accent, and the order may be either –́ × ×̀ or –́ × ×̀. Measures of two members may be grouped in three different ways so as to form a hemistich: i. –́ × | –́ × (descending rhythm); ii. × –́ | × –́ (ascending); iii. × –́ | –́ × (ascending-descending)[67]; i. and ii. are symmetrical, iii. is unsymmetrical, but as the number of members in the feet of these three types (2+2 members) is the same, we may call them, as Sievers does, types with equal feet (_gleichfüssige Typen_), while the others (1+3 members or 3+1 members) may be called types with unequal feet, or measures. The normal hemistich, then, which consists of four verse-members, will fall, according to the relative position of these measures or feet, into the following five chief types: =a.= Types with equal feet (2+2 members) 1. A. –́ × | –́ × double descending. 2. B. × –́ | × –́ double ascending. 3. C. × –́ | –́ × ascending-descending. =b=. Types with unequal feet 4. D. {–́ | –́ ×̀ ×} {–́ | –́ × ×̀} (1+3 members). 5. E. {–́ ×̀ × | –́} {–́ × ×̀ | –́} (3+1 members).