6 Bernard Bloch, “The Treatment of Middle English Final and Preconsonantal R in the Present-Day Speech of New England” (thesis, Brown, 1935); and “The Post Vocalic R in New England Speech,” Actes du IVe Congrès Internationale de Linguistes (Copenhagen, 1938), 195-97; Gordon E. Bigelow, “More Evidence of Early Loss of [r] in Eastern American Speech,” AS 30 (1955) 154-56; Vivian S. Lawrence, “Dialect Mixture in Three New England Pronunciation Patterns: Vowels and Consonants” (thesis, Columbia, 1960); Robert L. Parslow, “The Pronunciation of English in Boston, Massachusetts: Vowels and Consonants” (thesis, Univ. of Michigan, 1967); Peter and Jane Benes, American Speech: 1600 to the Present, DSNEF, 1983 (Boston, 1985).