R1.23456--/ 1-(1-r"12) (1-r213.2) (1-r'14.23) (1-r2 15.234) (1-r16.24345) By inspection, one can immediately realize the need for time saving devices that will insure a high degree of accuracy, The, purpose of this paper is to proceed immediately to the Censideration of an Interlocking Table for Use in Obtaining the Multiple Correlation value of any combination of variables, having given the value of all needed partials. The following sets of equations are given to assist the reader in becoming acquainted with the equations and their relationships. Equations (1), (4), and (7) are of regular notation. For ease of expression letters have been substituted for the r's in equation (2), (5), and (8). In equations (3), (6), and (9) numerical values have been substituted for illustrative purposes,