The lowest average--and it is much lower than any other average in the table--is that of 5_b_, in which the contrasted objects have neither angles nor incomplete lines directed to any common point between the objects. In view of the notes, the tabulated record of these two figures (5_b_) is very significant, and strikingly confirms, by its negative testimony, what 1_a_ and 2_b_ have to teach us by their positive testimony. The averages are, in the three cases just cited: 1_a_, 35.11 seconds; 2_b_,33.11 seconds; 5_b_, 15 seconds per minute. On the whole, then, the power of the line to arrest, direct, and keep the attention, through the greater energy and definiteness of the processes which it excites, and thereby to increase the chances of the recurrence and persistence of its idea in consciousness, is confirmed by the results of this series. The greatest directive force seems to lie in the sharply acute angle. Two such angles, pointing one towards the other, tend very strongly to carry the attention across the gap which separates them. (And it should be borne in mind that the distance between the objects exposed was 25 cm.) But the power of two incomplete lines, similarly situated, is not greatly inferior. It thus appears that the attention process is in part, at least, a motor process, which in this case follows the direction of the lines, acquiring thereby a momentum which is not at once arrested by a break in the line, but is readily diverted by a change in the direction of the line. If the lines are so situated that the attention process excited by the one set is carried away from the other set, the one set inhibits the other. If, on the other hand, the lines in the one set are so situated that they can readily take up the overrunning or unarrested processes excited by the other set, the two figures support each other by becoming in fact one figure. The great importance of the motor elements of the attention process in ideation, and thus in the persistence of the idea, is evident in either phase of the experiment. RECAPITULATION.