Alfred Large, Encyclopædia Britannica, Ninth Edition (1878)
“ Thus the visible marks of attention the deaf and dumb receive from others, their caresses, frowns, and smiles, all make a corresponding impression on their tender minds, and as they grow older they watch the looks and gestures of those near them with a keenness unknown to other children, so that the slightest change of expression does not escape their observation. ”
