Usage History of 'psilocin'

The following chart shows how frequently 'psilocin' appeared in printed materials over time. For example, the word 'psilocin' occurred 4 times in books in 1958 and 320 times in 2008. From 1958 to 2008, the word 'psilocin' was used a total of 15,054 times in books scanned by Google. See Reference: Google Ngram project.

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