ex āsse hērēs, Quintil. 7, 1, 20, heir to the whole; relīquit hērēdēs ex bēsse nepōtem, ex tertiā parte neptem, Plin. Ep. 7, 24, 2, she left her grandson heir to 2/3, her granddaughter to 1/3. hērēdem ex dōdrante, N. 25, 5, 2, heir to 3/4.

[2428.] Sometimes fractions are expressed by addition: as, dīmidia et quarta, 3/4; pars tertia et septima, 10/21; sometimes by division of the denominator: as, dīmidia quīnta, 1/10.

[(E.) PROSODY.]

[I. RULES OF QUANTITY.]
[(A.) In Classical Latin.]

[2429.] The length of the vowel in some classes of syllables, as used in the classical period, may be conveniently fixed in the memory by the following rules. For the usage of older writers, see [126], [129], [132] and 2464-2472. For the general principles of length of vowels and syllables, see [33-41]; 121-134; 177-178.

[Monosyllables.]

[2430.] Monosyllables ending in a vowel or a single consonant have the vowel long: as,

dōs, sōl; ā for ab; ē for ex or ec-, pēs for *peds; ablative quā, quī; quīn for *quīne; locative sei, commonly sī; sīc ([708]); dative and ablative plural quīs ([688]).

Exceptions.