long doubted, though asserted by Madame Marian, the French naturalist, has been corroborated by Monsieur Jonnes, her countryman. He states that it spins no web to serve it as a dwelling, but burrows and lies in ambush in the cliffs and hollow ravines. It often travels to a considerable distance, and conceals itself under leaves, thence to dart out on its prey; or it climbs along the branches of trees to surprise the humming-birds and other small tree-creepers. Bates still further settles the point. With regard to the habits of another species which does spin a web, he says that, catching sight of one of these spiders, he was attracted by its movements. It was in the crevices of a tree, across which was stretched a dense web. The lower portion of the web was broken, and two small birds,--finches,--were entangled in the pieces. They were the size of the English linnet, and probably male and female. One was quite dead, the other lay dying under the body of the spider, and was smeared with the filthy liquor or saliva exuded by the monster. The mygale carries its eggs enclosed in a cocoon of white silk of a very close tissue, formed of two round pieces uniting at their borders. It supports this cocoon under its corselet by means of its antennulae, and transports it along with itself. When hard-pressed by its enemies, it abandons it for a time, but returns to take it up as soon as the combat is concluded. Nearly two thousand eggs are contained in these cocoons. The young ones when they appear are entirely white, gradually assuming the colour of the adult. The falces, or reaping-hook claws, of the great crab-spider are of enormous size, and ai-e sometimes set in gold and used as toothpicks, from the idea that they possess some medicinal virtue to cure the toothache. The different species vary very much in their habits. One big fellow-- the Mygale Blondii--forms a broad slanting gallery about two feet in length, the sides of which he lines beautifully with silk. Just before sunset he may be seen keeping watch near the mouth of his tunnel, disappearing suddenly when he hears a heavy foot-tread near his hiding-place. Many are of the most showy colours. Some double themselves up at the base of leaf-stalks, so as to resemble a flower, and thus deceive the insects on which they prey. One of the most extraordinary in appearance--the Arosoma arcuatum--has two curved, bronze-coloured spines, an inch and a half in length, proceeding from its abdomen. It spins a large web, those huge spikes apparently being no impediment to its work. BEES AND WASPS.