Beschreibung:
Published between 1850 and 1886, these six volumes by Thomas Davidson offered a definitive reference text on brachiopods.
Part VI. The Devonian Brachiopoda: Preliminary remarks; British Devonian Brachiopoda; Conclusion; Index; Part VII. The Silurian Brachiopoda: Preliminary observations; British Silurian Brachiopoda; Conclusion; Index to volumes I, II, and III.