According to ancient records, Galoa and Canaan are transliteration of black agarwood. Only in the eyes of the medical profession, Qin 'an is an extremely rare plant knot, and Qin 'an is fragrant. The new products added in the materia medica are: adding southern flavor, pungent and fragrant, lowering qi to ward off evil spirits, waking up, invigorating spleen, shrinking intestine, benefiting life fire, closing qi, and treating heartburn, stomachache and abdominal pain. Six-legged, six-petal ribbed, wheel-shaped in cross section, with needles on each side and no leaves. Third, people say that what can blame the south is not a tree, commonly known as a tree. The gardens planted by farmers are hedges, with round branches, six or seven feet high, leaves at both ends, long oval shape, no handle, crisp meat and plenty of milk when the leaves fall. Peel and slice, dip in rice, clean milk and cook with pork. It has special effects on treating fever, toxic sore and furuncle. Minnan slang has a strange fragrance, a prosperous fire and an isolated mountain, which is extremely precious. When I was a child, I often heard about the characteristics of this thing, but I have never seen it. In recent years, I came to Siam and learned that those can make a strange south, and Fujian. That is to say, when the fragrance is made at the broken place, its milk flows in the dry hole and condenses like grass. When used as medicine, it tastes bitter, cold and toxic. If it is diarrhea, take two or three points each time, which has special effects on intestinal carbuncle and gastric cancer. This island with big fire, more stones, less soil and no trees will dry up and break, but it can make incense. There are many snakes and scorpions on the island, but it is not easy to get them. The most, one is in the bird's nest island in Wanyan, and the other is in the shallow boundary of the mouth of the Chao Phraya River. There are many Buddhist temples on the pavilion, which are still in the South China Sea. The world regards it as a Buddhist country. The island is full of fire and trees, and the natives are looking for strange south. Because of the flourishing trees in China, none of them can make incense. The incense is strong and big on the dry head and long and thin on the branches. It is full of purple and black, but whether it is purple and black, it is true that it turns green when scraped, and other kinds of knots turn yellow. It is heavy and oily, and it is very easy to get angry, bitter and not fragrant.