'His thirst for knowledge,' says Dr. Howe, 'proclaimed itself as soon as he entered the house, by his eager examination of everything he could feel or smell in his new location. For instance, treading upon the register of a furnace, he instantly stooped down, and began to feel it, and soon discovered the way in which the upper plate moved upon the lower one; but this was not enough for him, so lying down upon his face, he applied his tongue first to one, then to the other, and seemed to discover that they were of different kinds of metal.
'His signs were expressive: and the strictly natural language, laughing, crying, sighing, kissing, embracing, &c., was perfect.
'Some of the analogical signs which (guided by his faculty of imitation) he had contrived, were comprehensible; such as the waving motion of his hand for the motion of a boat, the circular one for a wheel, &c.
'The first object was to break up the use of these signs and to substitute for them the use of purely arbitrary ones.
'Profiting by the experience I had gained in the other cases, I omitted several steps of the process before employed, and commenced at once with the finger language. Taking, therefore, several articles having short names, such as key, cup, mug, &c., and with Laura for an auxiliary, I sat down, and taking his hand, placed it upon one of them, and then with my own, made the letters KEY. He felt my hands eagerly with both of his, and on my repeating the process, he evidently tried to imitate the motions of my fingers. In a few minutes he contrived to feel the motions of my fingers with one hand, and holding out the other he tried to imitate them, laughing most heartily when he succeeded. Laura was by, interested even to agitation; and the two presented a singular sight: her face was flushed and anxious, and her fingers twining in among ours so closely as to follow every motion, but so slightly as not to embarrass them; while Oliver stood attentive, his head a little aside, his face turned up, his left hand grasping mine, and his right held out: at every motion of my fingers his countenance betokened keen attention; there was an expression of anxiety as he tried to imitate the motions; then a smile came stealing out as he thought he could do so, and spread into a joyous laugh the moment he succeeded, and felt me pat his head, and Laura clap him heartily upon the back, and jump up and down in her joy.
'He learned more than a half-dozen letters in half an hour, and seemed delighted with his success, at least in gaining approbation. His attention then began to flag, and I commenced playing with him. It was evident that in all this he had merely been imitating the motions of my fingers, and placing his hand upon the key, cup, &c., as part of the process, without any perception of the relation between the sign and the object.
'When he was tired with play I took him back to the table, and he was quite ready to begin again his process of imitation. He soon learned to make the letters for KEY, PEN, PIN; and by having the object repeatedly placed in his hand, he at last perceived the relation I wished to establish between them. This was evident, because, when I made the letters PIN, or PEN, or CUP, he would select the article.
'The perception of this relation was not accompanied by that radiant flash of intelligence, and that glow of joy, which marked the delightful moment when Laura first perceived it. I then placed all the articles on the table, and going away a little distance with the children, placed Oliver's fingers in the positions to spell KEY, on which Laura went and brought the article: the little fellow seemed much amused by this, and looked very attentive and smiling. I then caused him to make the letters BREAD, and in an instant Laura went and brought him a piece: he smelled at it; put it to his lips; cocked up his head with a most knowing look; seemed to reflect a moment; and then laughed outright, as much as to say, "Aha! I understand now how something may be made out of this."
'It was now clear that he had the capacity and inclination to learn, that he was a proper subject for instruction, and needed only persevering attention.