Among the most interesting natural phenomena of this district are the so-called volcanoes, whose occasional eruptions have been noticed by many. Mr. Le Gendre, United States Consul at Amoy in 1869, upon a visit to Formosa took occasion to examine more closely into this subject. It appears from his report[70] that a gas is constantly issuing from the earth, and when a hole to the depth of a few inches is made it can be lighted. It is most likely, he continues, that from time to time gas jets break forth at points of the hills where they had not been observed before, rushing through its long grass and forests of huge trees, and the rock oil which as a general thing flows in their vicinity. As they are apt to spontaneously ignite in contact with the atmosphere, they must set fire to these materials and cause a local conflagration, that gives to the many peaks of the chain the appearance of volcanoes. ~FORMOSA AND THE PESCADORES.~ Previous to the first half of the fifteenth century the Chinese had little knowledge of Formosa, nor was their sway established over any part of it until 1683. It was never really colonized, and became a misgoverned and refractory region from the earliest attempts at subjection. A great emigration is constantly going on from the main, and lands are taken up by capitalists, who not only encourage the people in settling there, but actually purchase large numbers of poor people to occupy these districts. Taiwan fu, the seat of local government, is the largest place on the island; other harbors or places of importance are Ku-sia and Takow, some miles south of Taiwan, the latter, with Tamsui, on the north-west coast, being one of the recently opened ports of trade. Kílung possesses a good harbor and is the entrepôt of goods for the northern end of the island. Since the opening (in 1861) of these three towns to foreign intercourse, and the more careful examination of the neutral territory at the foot of the mountains, the resources, peoples, and condition of this productive isle have become better known. It may be of interest to refer, before leaving Formosa, to the extraordinary fabulous history of the island by one George Psalmanazar, the _nom de plume_ of a remarkable impostor of the commencement of the eighteenth century, who pretended to be a Japanese convert to Christianity from Formosa, and who created a profound sensation in Europe by the publication in Latin of a fictitious notice of that country.[71]