II. (a) Further Research on the Structure of Psaronius, a Tree Fern of the Coal-Measures (b) On the Leaf-Sheath surrounding the Nodes of some of the Calamites of the Lancashire Coal-Measures
Published in Memoirs and proceedings of the Manchester Literary & Philosophical Society, in 1899, in volume 43, issue 2, pages 1-8
Date published:1899