The correlations between Pre-Engineering Inventory (P.E.I.) scores and average grades at the Merchant Marine Academy at Kings Point are presented and discussed. The correlations presented are: 1) composite score (technical verbal ability, ability to comprehend scientific materials, and general mathematical ability) with average grade, for a deck group; 2) composite score with average grade, for an engineer group; 3) test V scores (mechanical principles) with machine shop grade, for an engineer group; 4) test V scores with average grade, for an engineer group; and 5) test V scores with composite scores for an engineer group. Scores were obtained from cadet midshipmen, class of 1952, 156 in a deck group and 167 in an engineer group.