Such are the names given by the natives of the Molucca Islands and in the Indian Archipelago to a deadly poison which is used to impregnate the heads of their arrows. The tree from which it is extracted is named _Bohou Upas_, _Boa Upas_, and _Pohou Antiar_. Various accounts of its deleterious nature have been given by ancient travellers. Cleyer and Spielman described it upwards of a century back, and state that no antidote to its dreadful action is known, though vomiting, produced by the most disgusting means, was considered the only method of arresting its dire effects. Spielman asserts that the land for several miles round these trees is desolate and barren, for no plant can grow under their influence. The poison, he states, flows in a milky form from the tree, and no one can approach it at this period, as one drop of the fatal juice falling upon the face or hands produces instant stiffness of every limb, followed by rapid death; it is therefore obtained at the end of long bamboo canes, armed with a pointed tube to receive it when plunged into the bark. Rumphius confirms in a great measure the above statements, and describes the tree, which he divides into male and female: he adds, that they only grow in the island of Celebes, and that all around the dreaded spot is desert and consumed. A more recent Dutch traveller, Foersech or Fooerch, did not let so fertile a subject escape, and has cultivated most industriously this dreary desert in the following account. Sterility prevails for upwards of ten miles round this dreadful tree on the part of the island of Java where it grows. When criminals are sentenced to death, they are offered a free pardon if they consent to seek a small boxful of this valuable yet terrific poison. They are first sent to the dwelling of a priest who resides at a safe distance from the spot; there they arrive, accompanied by their disconsolate and wailing families. They remain with this holy man for a few days, during which he affords them both spiritual comfort and good advice; the latter urging the precaution not to set out until the wind blows in such a direction as to waft from them the floating emanations. On their departure on this dreaded expedition he gives them a small box of silver or tortoise-shell, covers their head and face with a leathern hood with glass eyes, and protects their hands with a thick pair of gloves of the same material. He then accompanies them about two miles on their sad journey, and then he describes the hellish spot where this treasure is to be found as minutely as any one can describe what he has not seen; then, giving the poor pilgrim his blessing, he departs on his return. This worthy man informed our traveller that, during thirty years which he had held that enviable situation, he had sent off no less than seven hundred criminals, of whom only twenty-two returned: and he confirmed the statement by exhibiting a list bearing their names and the offences for which they had been tried.