The inquiry may reveal still more serious anomalies in the ideas, intelligence, and mental condition of the patient. Sometimes the answers given are sensible but are followed by nonsense. Other patients, especially when afflicted with melancholia, speak unwillingly, as if the words were forced from them, one by one. Idiots, cretins, and demented persons are sometimes incapable of expressing themselves. Some patients who have had apoplectic strokes substitute one word for another, "bread" for "wine," etc., or elide one part of the sentence and only repeat the last word. _Memory._ To form an idea of the memory of the subject, questions should be put to him concerning recent and remote personal facts and circumstances, the year in which he or his children were born, what he had for his supper on the previous evening, etc., etc. _Visual memory_ may be tested by giving the patient a sheet of paper, on which are drawn various common objects, letters, or easy words. He should be allowed to look at these for five or ten seconds and requested to enumerate them after the paper has been withdrawn. In order to test the memory of sounds, the examiner should utter five or six easy words and ask the patient to repeat them immediately afterwards. To test sense of colour, a picture on which various colours are painted is placed before the patient, as well as a skein of wool of the same shade as one of the colours in the picture, which he is requested to point out. _Handwriting_ is very important, particularly in distinguishing a born criminal from a lunatic, and between the various kinds of mental alienation. Monomaniacs and mattoids (cranks) who give the police the most trouble often speak in a perfectly sane manner, but pour out all their insanity on paper, without an examination of which it is not easy to detect mental derangement. They write with rapidity and at great length. Their pockets, bags, etc., are always full of sheets of paper covered with small handwriting, sometimes scribbled in all directions. The matter is generally absurd or simply stupid, consisting of endless repetitions. Individuals in the first stage of paralysis make orthographical errors, which coincide with their mistakes in pronunciation, like _Garigaldi_, instead of _Garibaldi_. Care must be taken to test this defect thoroughly. If the patient is fairly well-educated, his signature, which is the last to alter, is not sufficient; nor are a few lines a satisfactory test, since he can easily concentrate his attention on them, but he should be requested to write a page or two and be exhorted to make haste. Alcoholism and paralysis generally give rise to tremulous handwriting with unsteady strokes, as in old people. After epileptic seizures and attacks of hysteria the writing is shaky. The slightest trembling of the hand is detected if Edison's electric pen be used.