Unlike the child, Julius paid little attention to the six-foot stick.  Two or three times he took it up and seemingly reached for the banana, but in no case did he try persistently to strike it and knock it from the string.  It is but fair, however, to remark that such an act is very difficult for the young orang utan, as compared with the child, because of the weakness of the legs and the awkwardness of striking from a sitting posture.  As previously, the steadiness of attention and the persistence of effort toward the end in view were most surprising.  At one time Julius walked to the end of the cage and there happened to see one of the monkeys eating.  He watched intently a few seconds and then hastened back to the banana as if his task had been suggested to him by the sight of the feeding animal.  Most interesting and significant in this behavior was the suddenness with which he would turn to a new method.  It often looked precisely as though a new idea had come to him, and he was all eagerness to try it out.

On March 11, Julius was given another opportunity to obtain the banana by the use of the three boxes.  Although he used them together he made no effort to place one upon another.  Certain of his methods are shown in plate V, especially by figures 21, 23 and 24.

This experiment was continued on April 2 under yet different conditions, for this time only two boxes were placed in the cage, the one of them the heavy, irregularly-shaped box and the other the smaller, lighter one originally used.  On the end of the heavier box had been nailed a two by two inch wooden block in order to increase the difficulty in using this box alone.  As previously, Julius made varied attempts to obtain the banana, but on the whole his interest and attention seemed somewhat weaker than previously and there were indications of discouragement because of repeated failures.

He handled the boxes conspicuously well, and it seemed at times that he would certainly succeed in placing the one upon the other and in reaching the food.

After one series of attempts from the sides of the cage and from the large box, he deliberately turned away from the box and neatly executed a somersault on the floor of the cage, as much as to say, “I am disgusted with the whole situation.”  Again, later on the same day, after falling from the top of the larger box, which tilted over very easily, he rolled himself into a ball, and childlike, played with his feet.  An additional evidence of his changed affective attitude toward his task, especially in connection with definite failures, appeared in his rough handling and biting of the boxes.  When most impatient, he worked very roughly.

Julius was allowed to work for the reward from thirty to ninety minutes, or, as a rule, until he had become completely discouraged on April 3, 5, 6, 7, 8, 9 and 13.  His behavior was interesting and significant, but nothing new appeared except that his willingness to work gradually disappeared, and on April 13, although previously hungry, he made only a single attempt to obtain the banana and then paid no further attention to it.