Sending first part of second volume of his "Species plantarum", asks if Smith received the first volume and diploma of Society of Natural Scientists. Was unaware that Smith had named a genus 'Persoonia', in honour of [Christiaan Hendrik] Persoon; he also named a genus after Persoon in his "Species plantarum", proposes alternative 'Marshallia' for his, in honour of L B Marshall of Biberstein. Sending article from "Transactions of the Natural Scientists".

Sending second part of second volume of his edition of "Species plantarum", containing classes 'Dodecandria', 'Icosandria', and 'Polyandria'. Third volume, to follow shortly, will contain 'Didynamia', 'Tetredynamia', and 'Monadelphia'. Discusses various species of 'Carex' still under dispute, including 'Carex montana', 'C. leporina', 'C. canescens', 'C. globularis', 'C. ovalis', 'C. paradoxa', 'C. dioica', 'C. reflexa'.