Note 1
From Some Limitations in "A Preface To 18th Century Poetry"

From 'De Poesi Didactica', an unpublished lecture delivered in 1711 (R. E. Tickell, Thomas Tickell and the Eighteenth Century Poets, 1931, p. 203; quoted by F. W. Bateson, English Poetry and the English Language, 1934, p. 52). See Note K, p. 170.