... Ph.D., M.P., and F.R.G.S. (such titles to be set without space between the letters). But do not capitalize such phrases when spelled out : doctor ... ... and state in the date line, and the salutatory phrase at the beginning, of letters, and the signature and residence at the end of letters - or ar... ... 54. Address lines in speeches, reports, etc., and primary address lines in letters: Mr. Presidmt, Ladies and Gentlemen : Mr. John Smith, 321 Dearb... ...e, etc., to denote fractional part : Luke 4 : 31a (with a hair-space). 57. Letters used to designate unknown quantities, lines, etc., in algebraic,... ...laws. 187. The prehes " co-," "pre-," and "re-," when followed by the same vowel as that in which they terminate, Manual of Style: Punctuation 65 ... ... take a hyphen; but, as a rule, they do not when fol- lowed by a different vowel, or by a consonant: co-operation, pre-empted, re-enter; but: coequ... ...er); pro-gtm y, not: #rog-en y; pre-judice, not: pe-dice. 207. Divide on a vowel wherever practicable. In case a vowel alone forms a syllable in th... ...criticism. Exceptions are words in -able and -ible, which should carry the vowel over into the next line: read-abk, not: reada-ble; convert-ible, n... ...: pov-erty-stricken, much less: pover-ty-stricken. 209. A coalition of two vowel-sounds into one (i. e., a diphthong) should be treated as one lett...