History of the Encyclopædia Britannica the criteria by which the articles were sorted were not obvious even to scholars, despite Dr. Adler's claims that the sorting followed naturally from the "Propædia's" outline of all knowledge. In 1985, the "Britannica" responded to reader requests by restoring the index as a two-volume set. The number of topics indexed by the "Britannica" has fluctuated from 500,000 (1985, the same as in 1954) to 400,000 (1989,1991) to 700,000 in the current 2007 print version. Presumably, this recent increase reflects the introduction of efficient electronic indexing, since the size of the encyclopedia has remained nearly constant at approximately 40 million
Encyclopedia Americana the "Encyclopædia Britannica". It was four quarto volumes meant to "extend and complete the articles in "Britannica"". Stoddart's work, however, is not connected to the earlier work by Lieber. In 1902 a new version in 16 volumes was published under the title "Encyclopedia Americana," under the editorial supervision of "Scientific American" magazine. The magazine's editor, Frederick Converse Beach, was editor-in-chief, and was said to be assisted by hundreds of eminent scholars and authorities who served as consulting editors or authors. The first publisher was R.S. Peale & Co; between 1903 and 1906 further editions were issued by the Americana Corp.