A number of papers have appeared on laryngotracheobronchitis in recent years, almost wholly from otolaryngologic sources. Notable contributions have been made by Chevalier Jackson,1 Lyman Richards2 and Sidney Farber, T. R. Gittens,3 H. L. Baum,4 D. M. Tolle,5 A. H. Neffson and S. M. Wishik6 and others. It has seemed to us worth while to approach and to present this live subject with more regard to a pediatric point of view than has been usual hitherto and to combine the clinical, endoscopic and pathologic aspects of the disease as encountered in a large children's hospital over a number of years.
The present report is an attempt at an analysis of our experience with this disease at the Children's Memorial Hospital over a period of ten years, from 1927 to 1936, inclusive. As the mortality has varied all the way from 25 per cent to