The cases reported have been seen in private practice during the past eight years. Cases seen in consultation with other physicians have not been included.
The history diagnosis was based on definite periodic attacks of vomiting, for which condition the patient was brought to me.
Recurrent vomiting, in a vast majority of the cases, we found occurs in the offspring of those who for two or more generations have not been occupied with manual work. The recurrent vomiting patients are the offspring of those who have had business or professional occupation.
SUMMARY OF THE FEATURES OF CASES SEEN
Average time cases were followed was 104 weeks.Sex: Seventy were boys; seventy-one were girls.Family History: Rheumatism in one or both parents in forty; sick headache and bilious attacks in forty.Appetite: In 31 per cent, was normal; in 69 per cent, it was indifferent; in 59.5 per cent. there was