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In order to find and correct spelling errors in the online public access catalog at Adelphi University, a vis11al inspection u;as perfonned of the 117,000 keywords indexed in the system. More than 1,000 errors were fou.nd. Certain long b11t common words such as administration, education, and commercial were found to generate many different misspellings. Most of the records were derived from bibliographic utilities. so the findings can be generalized to other OPACs. The same misspellings were also fo11nd in substantial numbers in CD-ROM databases. Misspellings were analyzed by the machine-readable catalog (MARC)field in 11:hich they werefo11nd, part of speech, and type of mistake. Lists of commonly misspelled root words and specific mistakes are included.



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