▁an ▁edition ▁of ▁the ▁ 1 4 th - century ▁Book ▁of ▁V ices ▁and ▁V irt ues ▁for ▁the ▁Early ▁English ▁Text ▁Society . ▁He ▁was ▁hon ored ▁with ▁a ▁Ful br ight ▁Research ▁Fellow ship ▁and ▁conducted ▁field ▁research ▁in ▁Nor folk , ▁England , ▁between ▁ 1 9 5 6 ▁and ▁ 1 9 5 7 ▁for ▁the ▁Survey ▁of ▁English ▁Dia lect s , ▁which ▁was ▁being ▁compiled ▁at ▁the ▁University ▁of ▁Le eds . ▁ ▁In ▁ 1 9 6 2 , ▁he ▁joined ▁the ▁fac ulty ▁of ▁Brown ▁University ▁as ▁a ▁professor ▁of ▁L ingu istics ▁and ▁English . ▁In ▁ 1 9 6 4 , ▁he ▁began ▁working ▁on ▁a ▁joint ▁language ▁project ▁of ▁Brown ▁University ▁and ▁T oug al oo ▁College , ▁which ▁last ed ▁through ▁ 1 9 6 8 . ▁The ▁project ▁applied ▁lingu istic ▁principles ▁in ▁a ▁sy ll ab us ▁of ▁Standard ▁American ▁English ▁for ▁African - American ▁fresh men ▁at ▁T oug al oo ▁College . ▁After ▁the ▁project ▁was ▁completed , ▁he ▁became ▁the ▁chair ▁of ▁the ▁lingu istics ▁department , ▁serving ▁in ▁that ▁capacity ▁through ▁ 1 9 7 6 . ▁While ▁he ▁officially ▁retired ▁at ▁that ▁time ▁with ▁the ▁title ▁of ▁Emer it us ▁Professor , ▁he ▁continued ▁to ▁teach ▁historical ▁and ▁compar ative ▁lingu istics ▁and ▁advise ▁students . ▁In ▁ 1 9 8 7 , ▁he ▁was ▁appointed ▁chair ▁of ▁Brown ' s ▁newly ▁established ▁Department ▁of ▁C ogn itive ▁and ▁L ingu istic ▁Sciences