Received Smith's letter of 26 August. Shall proceed with the commentary on the "Hortus Malabaricus", has started arranging the specimens and written a preface giving an account of his journeys in India but feels that the commentary will be of considerable length. Perplexed by a 'Boerhavia' which he previously thought a 'Valeriana chinensis', asks Smith to consult his Mysore specimens for a 'Boerharvia elata' so as to see if a mistake was made. Has found two species of Aspidium, one is 'Aspidium dilatatum' and the other he previously thought to be 'Felix femina' but now cannot identify despite consulting "Flora Britannica", sending specimens. Sorry to hear of [Robert] Brown's difficulties at the British Museum.