The patient walks on the outside of the feet, has difficulty in climbing stairs, and cannot stand on the toes. The toes drag on the ground in walking, so that the foot has to be swung round at each step, and the inner side is lifted in excess by the action of the tibialis anticus, with uncertainty in gait. If walking is continued, the toes drag more, and “stepping” gait is assumed by bringing into action the muscles of the thigh. The foot cannot be flexed on the leg; abduction of the foot and extension of the basal phalanx of the toes is impossible. Later the peroneal muscles, extensor communis of toes, and extensor of great toe, are paralyzed, from which fact arises the difficulty of walking and of descending stairs, as the whole weight of the body is supported then by the tibialis anticus. This type corresponds with the antibrachial type of the upper extremity. If the tibialis anticus is paralyzed, it is in association with the gastrocnemius. 5. _Paralysis of Special Sense Organs._--Tanquerel[10] called attention to the aphonia of horses in lead works, necessitating tracheotomy, and Sajous[11] described adductor paralysis of the glottis in a house-painter. Morell Mackenzie[12] also described unilateral paralysis of the adductors in persons suffering from lead poisoning, whilst Seifert[13] particularly describes a curious case in which paralysis of the transverse and oblique arytenoid muscles prevented contraction of the cord in its posterior quarter, and in a second case of paralysis, affecting the posterior crico-arytenoid muscles on both sides, the adductors remained unaffected. What is still more interesting in Seifert’s case is the fact that at the post-mortem old hæmorrhages were found in the mucosa of the arytenoids and aryepiglottidean folds. Occasionally sensory paralysis may be found in the special sense organs--such, for instance, as loss of taste, loss of smell, and, in addition, diminished power of hearing--but these defects rarely if ever occur unless accompanied by distinct mental changes and generalized paralysis. 6. _Eye._--Poisoning affects the eye in two ways: (_a_) Defects of the visual mechanism. (_b_) Defects of the muscular mechanism of the eye. Lockhart Gibson[14] describes a large number of cases of paralysis of the muscles of the eye met with amongst children in Queensland. The cause was traced to the painted railings near which the children had been playing. The white lead paint had somewhat disintegrated under the action of the sun’s rays, forming an efflorescence; the children admitted to have rubbed the paint and then sucked their fingers.