A study was made of the effect of delay in rewarding the white rat after each run in a maze of 8 culs-de-sac upon learning efficiency as measured by total trials, time, and errors made in mastery of the maze. The animal was restrained from obtaining the food in the goal box by a heavy metal funnel which could be lifted at the end of the interval of delay. Delay intervals of 1 and 5 min. were compared with a control (no delay) group. The 1 min. delay appeared to slow up the learning slightly while the longer delay had no effect whatsoever.