The substance examined by the author was imported into Glasgow from Bombay, under the name of sooranjee, as a substitute for madder, but had been found useless by the dyers. No information could be obtained regarding its botanical origin in this country, but the importers having written to their correspondents received a quantity of seeds, labelled, Seeds of the Sooranjee plant, Morinda citrifolia. These seeds did not germinate, but agreed in their characters with those of M. citrifolia; and, for reasons stated at length in the paper, are considered by Dr Balfour to belong to that plant.