QUARTERLY JOURNAL HYDROGRAPHY Report of the 3rd Extraordinary I. H. Conference (p.2),hydrography Development Award 2004 Introduction of research achievements (p.10),participating in the Investigation of Oki-no-Tori Shima (p.16 ), Japanese consumers' food-safety and marine/climate change (p.19), hydrographic survey unit during orld ar (p.24 ),,Facts on the Mongolian Invasions Why did Mongolians go across the sea? (p.32), Hydrographic survey on Japanese coasts conducted by Admiral Putiatin's fleet in the last days of Tokugawa regime (p.39), Overcoming disasters of Niigata Chuetsu Earthquake (p.45), news, topics, report and information.

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