Errata We wish to apologize for incorrectly spelling the names of the following distinguished chemists in the caption of the picture on page 289 of theJourna1 of Chemical Education, Volume 51,Number 5, May 1974. Professor B. Jeiowska-Trzebiatowska; Chairman of the Polish Organizing Committee Professor Wodzimien Trzebiatowski; President of the Polish Academy of Sciences Dr. J e n y Kuhenki; Minister of Education, Poland Professor J a n Kaczmarek; Minister of Higher Education in Science and Technology of the Polish People's Republic Dr. Jean Benard, President of IUPAC William B. Cook USA Notional Representatiue IUPAC Committee on Teaching of Chemistry
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