Section A shows how he may--not probably, but possibly--be a victim of say ten other things. But it is not that he has an even chance of being one of these ten other things. As the reader watches the procession of cases in Section A, he will perceive that, amongst the ten major groups there studied, some have far greater diagnostic likelihood than others. Thus, syphilis, epilepsy, and somatic diseases will in the sequel prove more dangerous to our success as diagnosticians than, e. g., feeblemindedness or even perhaps alcoholism. But now let us look at these cases systematically, just as if we dealt with so many cases of Railway-spine or any other “incipient, acute, and curable” cases. CHART 2 PSYCHOPATHIA MARTIALIS ⎧‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾⎫ ⎧‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾⎫ SHELL-SHOCK SHELL-SHOCK PSYCHOSIS (THE PHYSICAL FACTOR) (NEUROTIC SYMPTOMS) (SYMPTOMS NON-NEUROTIC) ABSENT ABSENT INCIDENTAL PRESENT ABSENT LIBERATED, AGGRAVATED, ACCELERATED PSYCHOSES ABSENT COMBINED NEUROSES AND PSYCHOSES [2](FORMULA -++) PRESENT COMBINED NEUROSES AND PSYCHOSES (FORMULA +++) ABSENT NEUROSES ABSENT (QUASI SHELL-SHOCK) PRESENT NEUROSES ABSENT (TRUE SHELL-SHOCK) [2] For formulae see Chart 3 on opposite page. CHART 3 PSYCHOPATHIA MARTIALIS FORMULAE ⎧‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾⎫ ⎧‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾⎫ S, N, P[3] = SHELL-SHOCK SHELL-SHOCK PSYCHOSIS (THE PHYSICAL[4] (NEUROTIC SYMPTOMS) (NON-NEUROTIC FACTOR) PRESENT PRESENT SYMPTOMS) PRESENT P = - - + SP = + - + NP = - + + SNP = + + + N = - + - SN = + + - [3] In the literal formulae, S = Shell-shock, N = Neurosis, P = Psychosis.