A computer program is presented for performing the statistical analysis of data generated from an n×n Latin Square experimental design. In addition to the usual analysis of variance information for testing the significance of the row, column, and treatment main effects, the analysis of variance table includes information for testing the linear and higher order curvilinear components for each main effect. Of further interest and as a supplement to the analysis of variance is the employment of Duncan's New Multiple Range Test for making all pair-wise comparisons among the factor level mean values.