In a longitudinal study of 29 middle-class Japanese infants, an attempt was made to identify early temperamental dispositions that predict later attachment classification. Specifically, Ainsworth Strange Situation observations at 12 months of age were preceded by, among others, observation of distress evident in newborns when a nipple was removed; and, at 7.5 months, observations of separation distress, reaction to a stranger, and mother-infant interaction. Assessments were administered to two cohorts. Analysis of the data revealed the following results: (1) A total of 22 Cohort 2 infants were coded Type-B, 8 were coded Type-C, and none was coded Type-A. This distribution across attachment categories replicated the one found in Cohort 1. (2) In both cohorts a marginally significant trend toward crying was found among a majority of Type-C babies in the response to interruption to sucking task. (3) In both cohorts observation of the infants' response to the entry of a male stranger and temporary separation from their mothers at 7.5 months revealed more signs of fear behavior among Type-C than Type-B infants. It was concluded that the findings reported previously for Cohort 1 were replicated by results obtained for Cohort 2. (Author/RH)