[The paper evolves a set of premises for the internal reconstruction of phonemic split, outlines a practical procedure for application to concrete problems, and supplies examples to illustrate the procedure.]

[In order to let Chaucer's use of Romance vocabulary provide additional evidence of his authorship of The equatorie of the planetis, it is necessary to distinguish between the overall percentage of such words in his writings, and that in works of different length. It is shown that the percentage of Romance words changes significantly with the length of the text, according to the relation

percentage of Romance words = 10 log10 (total words in text)

Using this formula, we calculate the expected percentage of Romance words in the Equatorie, estimated to contain about 6048 words, as 10 logio 6048 = 37.8%. By counting, it is found that Romance words constitute 37% of the vocabulary. The good agreement between theory and observation provides evidence for Chaucer's authorship of the Equatorie.]

[A quantitative study of English word formation based on the data of the Thorndike-Lorge frequency list. Results cover (a) dimensions of the word-forming mechanisms of modern English, (b) measures of the relations between the major suffixes and word classes, and (c) the main equivalences symbolized by the major suffixes.]

[The techniques of this study involve separating and recombining segments of utterances recorded on magnetic tape, and presenting the new stimuli to phonetically naive subjects for identification. The data support the results of previous experiments with synthetic speech conducted by the Haskins Laboratories: the place of articulation of m, n, and ŋ is conveyed principally by the transitions of the adjoining vowel formants. The nasal resonances, produced during the occlusion, serve principally as class markers, differentiating the nasals from their cognates in other classes, but they also appear to contribute a small amount to the place identification of these consonants.]