Puppies when teething are subject to convulsions, especially if they are of a high strung, nervous temperament. In most cases these convulsions or fits, as they are generally called, will disappear when the disturbing cause is removed, and no evil results will remain, especially when the animal is vigorous and healthy. Other causes and conditions, that perhaps would not cause them at other times, will also produce convulsions at this period, owing to the disturbed and fevered state of the animal. Among these causes are overfeeding, worms, sudden fright, extreme heat, ex-haustion from too long continued exercise, and in several instances I have seen a young dog go into convulsions from sympathetic affection of the nerves upon witnessing the spasms of a companion. Occasionally dogs will have fits from some cause that it is impossible to determine. In such cases epilepsy is to be feared, especially if the attacks should often recur.