x a double cons., how sounded, [70];
x makes long syllable, [177];
doubled cons., how written and how pronounced, [80];
doubled, never ends a word, [177];
doubled, makes long syllable, [177];
pronunciation of, [53-72];
classification of the consonants, [73-79];
consonant changes, [146-174], see [Substitution], [Development], [Disappearance], [Assimilation], [Dissimilation], Interchange;
mute or f followed by l or r, how affecting preceding short vowel, [178];
cons. roots, defined, [188];