The American Language / A Preliminary Inquiry into the Development of English in the United States

by H. L. Mencken

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Whitman, Walt; Slang in America, North American Review, vol. cxli, p. 431.

Whitney, William D.: The Life and Growth of Language, New York, 1875.

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Wilcox, W. H.: The Difficulties Created by the Grammarians are to be Ignored, Atlantic Educational Journal, Nov., 1912.

Williams, R. O.: Our Dictionaries; New York, 1890.

---- Some Questions of Good English; New York, 1897.