The question of frontology and modern synoptic analysis of tropical cyclones has come to the fore rapidly in the last decade owing to the influence of the Norwegian School and the improvement in collecting synoptic information in the tropics; Fr. Gherzi has been a cogent critic of typhoon frontology ever since the Indian and Japanese meteorologists first put fronts on typhoon maps. He has already expressed some of his views on the question in Gerlands Beitr., bd. 29, p. 344, Q. Jn. R. Met. Soc., 1932, p. 303, Met. Zts., March 1937, and in “Typhoons in 1933”, Zikawei, 1934 ; and is an authority on the subject with years of study and forecasting experience in the Far Eastern region. While many meteorologists will agree with some of his criticisms, in regard to Fr. Deppermann's work we think he may have misread him as the latter in his texts specifically denies that the fronts always extend right into the center of the typhoon even though his maps seem to show them that way, and also he does not claim the fronts in themselves are dynamically necessary for a typhoon; Deppermann does, however, seem to believe that as far as the Philippine region is concerned the typhoons do not form totally within a single homogeneous air mass and that the greater convergence in the SW Monsoon sector is somehow an important dynamic factor. It is with these points that Gherzi is really in disagreement. One of Deppermann's maps is reproduced here in order that the reader may see what is referred to, and in a coming issue of the Bulletin some of Fr. Deppermann's views will be quoted by way of rebuttal.—R. G .S.

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