During the examination he showed neither embarrassment nor any tendency to "show off." He was alert, interested, and gave his attention strictly to the business in hand. He always knew when he had failed on a test, and gave up with great reluctance. For example, he was unable to solve the problems under XVIII, 6, in the time allotted; but he carried these data away in his head, and held to them tenaciously till he had solved the problems. In several instances after he had given his reply he recast it in better form. In short, he exemplified in remarkable degree all the characteristics which Binet finally chose as symptomatic of intellectual power; i.e., (1) the ability to make and maintain a given direction; (2) the capacity to make adaptations for the purpose of obtaining a desired end; and (3) the power of auto-criticism. _Special tests_. Following the procedure described by Seashore, and using the set of forks recommended by him, E was tested for pitch discrimination, being given seven trials with the whole series of forks. His record was as follows, ## meaning a correct answer and -- meaning a false one. VIBRATION DIFFERENCES 30 23 17 12 8 5 3 2 1 .5 Series 1 ## ## ## ## ## ## ## ## ## ## 2 ## ## -- ## ## ## ## ## -- -- 3 ## ## ## ## ## -- ## -- -- ## 4 ## ## ## ## ## -- ## -- ## -- 5 ## ## ## ## ## ## ## ## -- -- 6 ## ## ## ## ## -- ## ## ## -- 7 ## ## ## ## ## -- ## -- ## ## His threshold for pitch discrimination would thus seem to be not greater than five vibrations, and would probably be found to be as low as three if a more complete test were possible. This is a very good record, according to Seashore's standards. E gave free associations to the first 50 words of the Kent-Rosanoff list of words, both stimulus and response words being oral. The stimulus words and responses follow: