Two procedures of multiple comparisons from recent statistical literature are reviewed and explained for implementation by research workers in other fields. The two procedures are extensions of Tukey's T-Method and apply to the case of unequal sample sizes. Interpretation of the significance level for any subset of contrasts of interest under these procedures is given, and application of the two procedures for setting up simultaneous confidence intervals and testing hypotheses in the case of pairwise comparisons among the means is explained through a numerical example.