When, in 1814, Dr. Roxburgh was sent to sea almost dying, Dr. Carey edited and printed at his own press that now very rare volume, the Hortus Bengalensis, or a Catalogue of the Plants of the Honourable East India Company's Botanic Garden in Calcutta. Carey's introduction of twelve large pages is perhaps his most characteristic writing on a scientific subject. His genuine friendliness and humility shine forth in the testimony he bears to the abilities, zeal, and success of the great botanist who, in twenty years, had created a collection of 3200 species. Of these 3000 at least had been given by the European residents in India, himself most largely of all. Having shown in detail the utility of botanical gardens, especially in all the foreign settlements of Great Britain, he declared that only a beginning had been made in observing and cataloguing the stock of Asiatic productions. He urged English residents all over India to set apart a small plot for the reception of the plants of their neighbourhood, and when riding about the country to mark plants, which their servants could bring on to the nursery, getting them to write the native name of each. He desiderated gardens at Hurdwar, Delhi, Dacca, and Sylhet, where plants that will not live at Calcutta might prosper, a suggestion which was afterwards carried out by the Government in establishing a garden at Saharanpoor, in a Sub-Himalayan region, which has been successfully directed by Royle, Falconer, and Jameson. On Dr. Roxburgh's death in 1815 Dr. Carey waited to see whether an English botanist would publish the fruit of thirty years' labour of his friend in the description of more than 2000 plants, natives of Eastern Asia. At his own risk he then, in 1820, undertook this publication, or the Flora Indica, placing on the title-page, "All Thy works praise Thee, O Lord--David." When the Roxburgh MSS. were made over to the library of the Botanic Garden at Calcutta, the fourth and final volume appeared with this note regarding the new edition:--"The work was printed from MSS. in the possession of Dr. Carey, and it was carried through the press when he was labouring under the debility of great age...The advanced age of Dr. Carey did not admit of any longer delay."