A new series of palaeontology monographs was started in 1908 with B.N. Peach's 'Higher Crustacea of the Carboniferous rocks of Scotland'. Volume 2, 1924 saw the start of Kidston's 'Fossil plants of the Carboniferous rocks of Great Britain' which ran to six substantial parts, the later ones were by Robert Crookall. The monograph, Volume 4 (part 1) was published in 1976.