An analysis of measurements of barrow carcasses of similar breeding indicated that carcass length was of little value as an index of percent separable lean (r2 = 0.06) and was of no value if carcass backfat was considered. The leanmeter better indicated leanness (r2 = 0.48) than did carcass backfat thickness (r2 = 0.36), but was inferior to carcass backfat thickness and loin-eye area at the tenth rib (R2 = 0.70). Specific gravity of the ham was a good index of leanness (r2 = 0.69) and mutually supplemented loin-eye area (R2 = 0.79). The weights of lean and fat in the ham were highly associated with leanness (R2 = 0.92). The indices showed a lower relation with weight of separable lean than with percent of separable lean but were more closely allied with leanness than with protein of lean.