These disorders consist in post-traumatic contractures, paralyses or paretic states, but are not attended by any of the signs of the so-called organic diseases, either of lesions of the central nervous system, or of the peripheral nervous system, or of the great arterial systems. In fact, these disorders somewhat resemble hysterical manifestations. The underlying lesions appear to be sometimes extremely small; in fact, so minimal as to be out of proportion with the functional disorders that they produce. These disorders do not correspond with any known anatomical regions, but they are singularly tenacious, and, unlike truly hysterical (pithiatic) phenomena, they are completely resistant to suggestion. Yet it is not merely in resistance to suggestive therapy that these reflex disorders differ from hysteria; for besides the contracture and the paralysis or paresis found in the different segments of the extremity concerned, the complete Babinski syndrome includes also muscular atrophy, exaggeration of tendon reflexes, alterations of skin reflexes (even amounting to areflexia), hypotonia, mechanical over-excitability of the muscles with retardation of the muscular contraction; quantitative changes in electrical excitability of muscles (excess or diminution without R. D.), mechanical over-excitability, and occasionally electrical over-excitability of the nerves, disturbances in objective and subjective sensibilities (anesthesia and pains), heat regulation disorders (especially hyperthermia), and disorder of the vasomotors (cyanosis, skin redness, oscillometric lowering at the periphery of the extremity in the presence of low temperature), secretory disorders, and various trophic disorders of the bony system, the skin, and the nails. Despite the permutations and combinations of these symptoms, according to Babinski they amount to a new group of disorders and represent a nosological species: a species of disease phenomena that lies midway between the organic affections and hysterical disorders. Babinski proposes the term _physiopathic_ for these phenomena, a term which excludes the connotation of hysteria and all forms of psychopathia, on the one hand, and seems, on the other, to express the fact of their correspondence to a physical material perturbation in the nervous system of a novel sort. Bullet wound of ankle: Contracture effect of chloroform. =Case 275.= (BABINSKI AND FROMENT, 1917.) A man was wounded, September 1, 1914, by a bullet in the left ankle. Contracture of the foot and of the four outer toes in extension followed, with a flaccid paralysis of the great toe. The left knee-jerk was a little stronger than the right; the left Achilles jerk also appeared weaker but observation was difficult on account of contracture of the foot.