This paper focusses on sex contrasts in language as revealed in recent sociolinguistic research. While there are relatively few differences in subjective language identifications and judgments, there are several clear differences in objective language data. In the Detroit Language Study, women show a greater "sensitivity" to multiple negation as an index of social stratification than men. Women use less pronominal apposition than do men, but there is a significant difference between men and women only in the lower middle class group. Within the Negro population, women reduce word final consonant clusters, delete "r," and alter median "th" significantly less than men. Some possible explanations are suggested but no conclusions are established. This report is based on the corpus which provided the data for related documents AL 001 721 and ED 022 155. (MK)