... 02 31. Nariko Shinriki>l<2 and Toshio Nambarafi<3 : The Sulfone Stretching Frequencies of Some Phenylsulfonyl Derivatives ... They are also indebted to Mr. K. Narita for elemental analysis and to Miss N. MatSuhisa for ... (Received March 1, 1962) 23) T. Nambara: Yakugaku Zasshi ...