Usage History of 'lithosols'

The following chart shows how frequently 'lithosols' appeared in printed materials over time. For example, the word 'lithosols' occurred 4 times in books in 1939 and 160 times in 2008. From 1939 to 2008, the word 'lithosols' was used a total of 16,183 times in books scanned by Google. See Reference: Google Ngram project.

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