THE readership of CHEMICAL AND ENGINEERING NEWS hit a new high in 1949 with a circulation of 73,000 in December. These readers come from nearly every phase of industry, research, education, and government. Each group has its own special interests, but they all have a basic interest and foundation in the profession of chemistry and chemical engineering. Our readers extend from the student in college to the presidents and directors of the country's largest industrial organizations, universities, and research foundations. The many different departments in C&EN and its variety of feature articles are designed to serve the interests of this constantly growing group of chemists and chemical engineers. From year to year one or more subjects stand out reflecting the trends of the time. Among such subjects in 1949 were the problems of commercial development and marketing of chemical products, education of technical personnel, questions of international cooperation among scientists, industrial wastes and atmospheric pollution, ...
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WALTER J. MURPHY (1950) studied this question.