A SYSTEMATIC ‘LINE FORMULA’ CHEMICAL NOTATION Available to Purchase

Technical librarians scarcely need to be reminded of the growing crisis in the field of chemical literature—the problem of efficiently retrieving facts about chemicals from the 1,200,000 technical and scientific articles that have been abstracted during the past fifty years, and the problem of finding sufficient shelf space for the rapidly increasing weekly and monthly additions in the 5,236 periodicals that are recognized as references by the chemical societies.