“As regards the exportation of the culture of Coca, the experiment has been tried, I believe, but once. Several years since, Mr. F. L. Steinart, of La Paz, shipped a small quantity of seeds _viâ_ London to Ceylon, and during the past season the first products were shipped to London and sold at a high price. Seeds for export should be exposed for several days to a hot sun, so as to rapidly dry the fleshy exterior, which thus forms a protection to the germ within. “It is my opinion that the Coca-plant is adapted for culture in many countries where it is now unknown. Among the countries where it would be well to experiment with it are Guatemala, Mexico, the East and West Indies, India, Southern China, portions of Africa, and possibly of Italy. It is doubtful if it would grow in any portion of the United States. Requiring an average temperature of at least 70°, the only districts at all suited would be Florida and Southern Texas; and it is highly probable that proximity to the sea-coast at so low an altitude would prove fatal. Nor would irrigation prove adequate in those countries possessing a long dry season. The plants must not only have an abundant supply of water at the roots; they must be bathed in a humid atmosphere for the greater portion of the year. But from what I have read of some of the countries above named, I am confident that the plant would there find a congenial home. Jamaica offers especially hopeful conditions.” CHAPTER VIII. DR. MANTEGAZZA’S EXPERIMENTS WITH COCA. Dr. Paolo Mantegazza, of Milan, who practised for many years in South America, thus writes of Coca:—[26] [Footnote 26: _Pharm. Journ._, 1860, p. 616, ex _Oesterreichische Zeitschrift für Praktische Heiikunde_, Nov. 4, 1859.]