“At the usual age these twins began to talk, but, strange to say, not their ‘mother-tongue.’ They had a language of their own, and no pains could induce them to speak anything else. It was in vain that a little sister, five years older than they, tried to make them speak their native language—as it would have been. They persistently refused to utter a syllable of English. Not even the usual first words, ‘papa,’ ‘mamma,’ ‘father,’ ‘mother,’ it is said, did they ever speak; and, said the lady who gave this information to the writer,—who was an aunt of the children, and whose home was with them,—they were never known during this interval to call their mother by that name. They had their own name for her, but never the English. In fact, though they had the usual affections, were rejoiced to see their father at his returning home each night, playing with him, &c., they would seem to have been otherwise completely taken up, absorbed with each other.... The children had not yet been to school; for, not being able to speak their ‘own English,’ it seemed impossible to send them from home. They thus passed the days, playing and talking together in their own speech, with all the liveliness and volubility of common children. Their accent was German—as it seemed to the family. They had regular words, a few of which the family learned sometimes to distinguish; as that, for example, for carriage, which, on hearing one pass in the street, they would exclaim out, and run to the window. This word for carriage, we are told in another place, was ‘ni-si-boo-a,’ of which, it is added, the syllables were sometimes so repeated that they made a much longer word.” The next case is quoted by Mr. Hale from Dr. E. R. Hun, who recorded it in the _Monthly Journal of Psychological Medicine_, 1868.