Bing-Hong invited us to pay him a visit on board his vessel, which had already been lying for several months at anchor in Nangkauri harbour, taking in a cargo of ripe cocoa-nuts, of which a _Picul_, or 133-1/3 pounds, is worth in the Pulo Penang market 5-1/2 American dollars (£1 3_s._ sterling). This hospitable Chinese informed us it was at the period of our visit the least unhealthy season in Nangkauri harbour: that as soon as the S.W. monsoon sets in, all foreign ships hurry away, through dread of the illnesses that follow in its track. However, feverish attacks are of daily occurrence throughout the year. Of the thirteen men who formed the crew of the barque, ten were laid up with fever. The disorderly habits of life, however, of foreign visitors are much more to blame for these frequent attacks of disease than the unhealthiness of the climate. Constantly they are guilty of excesses in diet and general negligence of health, bathing during the utmost heat of the day without any covering to the head, exposing themselves to the burning rays of the noonday sun, drinking for the most part nothing but the fluid contents of the unripe cocoa-nut, eating quantities of juicy fruits, the constant use of which acts injuriously on the systems of strangers, and sleeping on the damp soil under the open air, exposed to all the noxious influences of the atmosphere of a tropical forest without the slightest shelter. Bing-Hong showed us the dried edible nests of the _Hirundo esculenta_ (in Malay _Salang_, in Nicobar _Hegái_), and presented us with a small packet of about thirty nests. When properly dried, seventy-two of these tiny nests weigh one catty, or 1-1/4 lb., and they are sold at two rupees (4_s._) for three of the inferior sort. The best quality is far more expensive. We caused some of these Chinese dainties to be prepared exactly as prescribed by Bing-Hong, that is to say, they were boiled for one hour in hot water, but we found the gelatinous mass quite tasteless, and, in fact, resembling dissolved gum. The swallow which constructs these edible nests does not however seem to be a regular visitant of the Nicobar Islands, and the profits on this article of commerce, which is of such importance in Java and the rest of the Sunda Islands, are here scarcely worth naming.