In 1959, Quirk founded the
Survey of English Usage, working with Valerie Adams, Derek Davy and
David Crystal; they sampled written and spoken
British English produced between 1955 and 1985. The corpus comprises 200 texts, each of 5,000 words. The spoken texts include dialogue and monologue, and the written texts material intended for both reading and reading aloud. The project was to be the foundation of
A Comprehensive Grammar of the English Language, a widely used reference grammar and the first of English in real use rather than structured by rules derived from
Greek and
Latin models. Quirk and his collaborators proposed a descriptive rather than prescriptive grammar, showing readers that different groups of English speakers choose different usages, and argued that what is correct is what communicates effectively. The work was groundbreaking, though one proposed flaw is that the examples used were written by the scholars, not collected from texts, as preferred by one of the tutors at the Summer School, Edward Black. ==Summer School of English==