This review covers a survey of almost 600 articles written since October, 1929. It is gratifying to note that more is being written on the pathology, embryology and bacteriology of the sinuses. The maxillary antrum, as usual, is the sinus about which most is written. More and more attention is being paid yearly to the importance of the pulmonary complications due to infection of the upper respiratory tract.
ANATOMY, PHYSIOLOGY AND EMBRYOLOGY
Fiol has made an extensive research into the anatomy of the accessory sinuses. His articles are richly illustrated with drawings, photographs and x-ray plates of dissections and bones. His conclusions are as follows:
A. Relating to the Maxillary Sinus
1. The maxillary sinus does not open directly into the nasal fossa but into the oval foset, and in this way it communicates at the same time with the nasal fossa and with the antero-external