X . On the organization of the fossil plants of the coal-measures.— Part II. Lycopodiaceæ: lepidodendra and sigillariæ
- 31 December 1872
- journal article
- Published by The Royal Society in Philosophical Transactions of the Royal Society of London
- Vol. 162, 197-240
- https://doi.org/10.1098/rstl.1872.0010