The Heritage of American Heritage
http://www-rohan.sdsu.edu/dept/drwswebb/lore/2_2/bush_heritage.html

Bush, Donald W.
Lore
2002

Abstract:

The American Heritage Dictionary of the English Language, Fourth Edition, 2000, is a massive, 2074-page volume with fascinating articles on the roots of the language and current usage. The First Edition appeared in 1969, only eight years after the Merriam-Webster Third New International Dictionary  aroused a storm of protest that resounds to this day. Philip Gove, Webster’s editor, had reduced the number of entries from 600,000 to 450,000, but included 100,000 new definitions, many attached to words like beatnik. He had also used sources like Art Linkletter and TWA timetables, maintaining that not all language is formal. He had decreased use of the 'slang' label and banished 'colloquial' entirely, relying instead on quotations that gave a feel for words in context. Gove was denounced as 'permissive.' He had even included ain’t in the dictionary (with a note 'disapproved by many'). A New Yorker cartoon depicted a Merriam-Webster receptionist responding, 'Dr. Gove ain’t in.'