It has been suggested that the presentation of some practical points in the diagnosis and treatment of sinusitis, from the clinical standpoint only, might be of benefit to the young rhinologist who has just started the practice of this specialty. Wishing to learn all that he can of sinusitis, he investigates the literature, listens to the conversation of the older men, observes operations and studies end results. If his is a mind able to think things through, to discard the bad and adopt the good, he will be among those leaders of his profession who in each generation carry the torch forward. Many, however, sink in the quagmire presented by the literature alone. For example, two articles by physicians of equal repute, each fully convinced that his, and his alone, is the best method of diagnosis and treatment, differ from each other at every step. The same case histories, at