 When Nathaniel Wallich visited South Africa, he was made in-charge of the Calcutta Botanical Garden and also acted as Professor of Botany at the Medical College from 1842 to 1844.On being relieved, he moved back to the Straits of Malacca, falling ill and dying of a liver disorder on 10 February 1845.The Calcutta Journal of Natural History, produced with assistance from him ceased and the subscriptions were used by John McClelland to publish Griffith's unpublished manuscripts.