In the old chronicles we often read of drops of blood scattered here and there being regarded as a sinister omen, or even of regular showers of blood which carried terror into the minds of our superstitious ancestors. Now-a-days we know that the phenomenon is connected with the metamorphosis of insects. Gregory of Tours speaks of a shower of blood which fell in the reign of Childebert and spread alarm among the Franks. But the most celebrated is that which took place at Aix during the summer of 1608. It struck the inhabitants of the country with terror. The walls of the church-yard and those of the houses for half a league round were spotted with great drops of blood. A careful examination of them convinced a savant of that day, M. de Peirese, that all that was told about the subject was only a fable. He could not at first explain the extraordinary phenomenon, but chance revealed the cause. Having inclosed in a box the chrysalis of one of the butterflies which were then showing themselves in great numbers, he was astonished to see a stain of scarlet red at the spot where the metamorphosis had taken place. He had discovered the cause of the wondrous rain which had alarmed the people. A prodigious swarm of butterflies had appeared at the time, and his conjectures were confirmed by the fact that no drops of blood had been found on the roofs of the houses, but only on the lower stories, the places which the butterflies had chosen for their metamorphoses.
Shirts Growing on Trees.
"We saw on the slope of the Cerra Dnida," says Humboldt, "shirt trees fifty feet high. The Indians cut off cylindrical pieces two feet in diameter, from which they peel the red and fibrous bark without making any longitudinal incision. This bark affords them a sort of garment which resembles a sack of very coarse texture, and without a seam. The upper opening serves for the head, and two lateral holes are cut to admit the arms. The natives wear these shirts of Marina in the rainy season; they have the form of the ponchos and manos of cotton which are so common in New Grenada, at Quito and in Peru. As in this climate the riches and beneficence of nature are regarded as the primary cause of the indolence of the inhabitants, the missionaries do not fail to say, in showing the shirts of Marina, 'In the forests of Oroonoka garments are found ready made upon the trees.'"
Whistling Trees.
Schweinfurth, in his "Heart of Africa," describes what may be termed an insect organ-builder. In the country of the Shillooks, he says, the acacia groves extend over an area of a hundred miles square and stretch along the right bank of the stream. From the attacks of larvæ of insects, which have worked to the inside, their ivory white shoots are often distorted in form and swollen out at their base with globular bladders measuring about an inch in diameter. After the mysterious insect has unaccountably managed to glide out of its circular hole, this thorn-like shoot becomes a sort of musical instrument, upon which the wind, as it plays, produces the regular sound of a flute. On this account the natives of the Soudan have named it the whistling tree.
Aconite.
This plant was regarded by the ancients as the most violent of poisons. They said that it was the invention of Hecate, and that it sprung from the foam of Cerberus.
Oysters Growing on Trees.
Mr. C. H. Williams, of the Geographical Society of England, tells us how oysters inhabit the Mangrove woods in Cuba: "For several years I resided in that island, and have several times come across scenes and objects which many people would consider great curiosities—one in particular. Oysters grow on trees, in immense quantities, especially in the southern part of the island. I have seen miles of trees, the lower stems and branches of which were literally covered with them, and many a good meal have I enjoyed with very little trouble in procuring it. I simply placed the branches over the fire, and, when opened, I picked out the oysters with a fork or a pointed stick. These peculiar shell-fish are indigenous in lagoons and swamps on the coast, and as far as the tide will rise and the spray fly so will they cling to the lower parts of the Mangrove trees, sometimes four or five deep, the Mangrove being one of the very few trees that flourish in salt water."