This is the heading to an article about how to analyze the penmanship of "abnormal types" (the insane, criminals, forgers, those suffering from "cerebral mischief" or "nervous incompactness or attentuatedness").  One thing we learn is that in cases of delusional insanity, we find numerous capital letters where none are required, many words strongly underlined, and frequent use of ominous-looking crosses, stars or dagger-shaped signs and emblems.  In other samples of insane chirography, we find "the insanity of the penman staring at us, as it were, from every loophole and in every curve and stroke of the writing."  Yet persons of mental imbalance can trick us with their handwriting, and the article offers an example notable for its high degree of calligraphic finish and neatness, evidences of mental skill and dexterity of the penman, total absence of mental disbalance, and a "marked rememblance to the handwriting of one of the noblest and sanest men known to this or any other age, viz. Mr. Gladstone."  And so we learn that abnormal handwriting can deviate into the very picture of sanity.  Tricky!  From Cassell's, 1896.