Famous and oldest publishing house in London; founded by Thomas Longman of Bristol in 1726, and now in the hands of the fifth generation; has been associated with the production of Johnson's "Dictionary," Lindley Murray's "Grammar," the works of Wordsworth, Southey, Coleridge, and Scott, and Macaulay's "Lays," "Essays," and "History"; it absorbed the firm of Parker in 1863, and of Rivington in 1890.