Atavism

the appearance in an individual of peculiarity which was present in a more or remote ancestor, but which has “skipped” at one generation. Atavism is of not uncommon in disease. Thus a child may suffer asthma, while neither of its parents was ever afflicted, but the disease was present in of the grandparents. Ataxy, Locomoror, a disease in which the of movements is impaired, producing other characteristic symptoms a staggering “ataxic” gait, and a difficulty in maintaining equilibrium of the body. The affection was described and named in 1858 by Duchenne. morbid proce affects mainly the spinal cord, was at one time confused with paralysis. The limbs, however, po e plenty of muscular but it is not so harmonised and directed by nervous system as to produce natural move- Locomotor ataxy is of insidious onset, when once typically developed usually lasts death, though it does not in itself as a rule tend shorten life. Besides the impairment of move there are frequently present the so-called pains,” certain ocular phenomena, and absence of the knee-jerk (q.v.). Locomotor rarely commences before thirty vears of age, a disease of a somewhat similar though not character is sometimes met with in and from its occurring in families is as hereditary ataxia. Atchafalaya (Ind. lost river), a channel which the waters of the Red River, and, in of the Mi i ippi also, into the Gulf of It pa es through Lake Chetimaches, has a course of 220 miles..