Apologises for trouble caused by leaving 'Salicorna' bark [sent by Jacob Bigelow] with Sir Joseph Banks. Forwards pamphlets from Bigelow, who has been elected Rumford Professor at Harvard College; Bigelow's annual course of lectures will be on connections between arts and sciences. Suggests Bigelow's election to Linnean Society; his attributes, including Correa naming him the second best naturalist in America after Muhlenberg