Encyclopædia Britannica it is scarcely used, and reviewers have recommended that it be dropped from the encyclopaedia. The also has color transparencies of human anatomy and several appendices listing the staff members, advisors, and contributors to all three parts of the Britannica. Taken together, the and comprise roughly 40 million words and 24,000 images. The two-volume index has 2,350 pages, listing the 228,274 topics covered in the "Britannica", together with 474,675 subentries under those topics. The "Britannica" generally prefers British spelling over American; for example, it uses "colour" (not "color"), "centre" (not "center"), and "encyclopaedia" (not "encyclopedia"). However, there are exceptions to
Online encyclopedia varies from proof read, to poor quality text with many optical character recognition (OCR) errors. Many encyclopaedias are available at the Internet Archive. Although the original text is viewable the machine readable text is often poor with may OCR errors. In January 1995, Project Gutenberg started to publish the ASCII text of the "Encyclopædia Britannica", 11th edition (1911), but disagreement about the method halted the work after the first volume. For trademark reasons this has been published as the "Gutenberg Encyclopedia". Project Gutenberg has restarted work on digitising and proofreading this encyclopedia; as of June 2005 it had not yet