282 LINUS WAED KLINE 



Edge boxes that are adjacent to corner ones favor place-memory 

 e.g., 3 of D, being adjacent to 6 of C was learned prior to Q of 

 D (see diagram 1). (2) Other things being equal boxes at the 

 termini of long sweeping movements take priority in place mem- 

 ory, e.g.,8 of C, being the terminus of two comparatively long 

 movements, is considerably prior to J of C (diagrams 2, a and b; 

 second, third and fourth 13). (3) " Resident" boxes favor 

 place memory, e.g., J of H was learned prior to 8 of D and 10 

 of H prior to 9 of D, that is, boxes receiving cards unlike their 

 labels. This principle did not hold with the club boxes, despite 

 the fact that each box was visited twice in every trial, and, on 

 the principle of repetition, should have taken priority over the 

 heart boxes. The evidence shows, however, that diamonds to 

 clubs either operated as a retroactive inhibition, and thus annulled 

 the principle of repetition, or that the normal association of D to 

 D not only interfered with D to C, but also disturbed the normal 

 association of C to C. (4) Boxes receiving cards delivered with 

 a rightward movement, other things being equal, were located 

 prior to boxes receiving cards delivered by movements toward 

 the left, e.g., the 9 of D was located prior to 4 of D (diagram 2, 

 plan I, second and fourth 13, and table 4). 



The principles governing the location of the lateral boxes 

 operate similarly on the inner boxes. The third principle, that 

 of " resident" boxes finds illustration in the 2 of H being located 

 prior to 6 of D (diagram 2, plan 1, first 13) and by the 4 of H 

 prior to the 2 of D. The former pair are approached by move- 

 ments to the right, they differ only in that the 2 H is " resident," 

 and the latter pair are approached by movements to the left, 

 but the " resident" box is prior in being located. The fourth 

 principle, rightward movement, is well illustrated by the 2 of H 

 being located much earlier than 4 of H; both are "resident" 

 and adjacent to edge boxes. They differ in one element only, 

 the 2 of H is approached by a movement to the right and 4 of 

 H by a movement to the left. By the same principle the 7, 8 

 and 9 of H, three boxes, were located prior to 3 and 5 of H. At- 

 tention is called to the fact that the 5 of H is a " resident" card 

 and adjacent to a lateral box, the J of C, and yet despite these 



