United States or Cabo Verde ? Vote for the TOP Country of the Week !
The vulnerable point is thus easily accessible to the sting, despite the creature's posture of defence, in which it contracts and coils up. In this cylinder I recognize eleven ganglia, one more than in the Cetonia. The first three, or thoracic, ganglia are plainly distinguishable from one another, although they are set very close together; the rest are all in contact.
I saw the other day a gentleman living in Canada, who had spent seven successive winters in Egypt, with the entire relief of certain obscure thoracic symptoms which troubled him while at home. I saw, two months ago, another gentleman from Minnesota, an observer and a man of sense, who considered that State as the great sanatorium for all pulmonary complaints.
If we can prolong the duration, we shall have the victim of the Sphex. But first let us look into the effect of a prick administered elsewhere than opposite the thoracic ganglia. I cause a female Ephippiger to be stung in the abdomen, about the middle of the lower surface.
His shirt, buttoned with three large pearls worth five hundred francs apiece, gave a great idea of his thoracic capacity, and he was apt to say, "In me you see the coming athlete of the tribune!" His enormous vulgar hands were encased in yellow gloves even in the morning; his patent leather boots spoke of the chocolate-colored coupe with one horse in which he drove.
He attributes the sound to the friction of the third and preceding abdominal segments, and I find that these surfaces are marked with very fine concentric ridges; but so is the projecting thoracic collar into which the head articulates, and this collar, when scratched with the point of a needle, emits the proper sound.
But all free Copepoda, and most of the parasitic Crustacea, pass through a longer or shorter series of stages of development, in which the limbs acquire a higher degree of division into joints in continuous sequence, the posterior pairs of feet are developed, and the last thoracic segment and the different abdominal segments are successively separated from the common terminal portion."
Some it sends to the blood, some to the lymphatic vessels, some to the lacteal vessels of the mesentery, and some down to the intestines. Then the chyle, conveyed through the thoracic duct from its cistern in the mesentery, is carried to the vena cava, and so to the heart.
Foerster, Froriep, and Ried cite instances associated with thoracic malformation. Greenhow reports a case in which the mammae were absent, although there were depressed rudimentary nipples and areolae. There were no ovaries and the uterus was congenitally imperfect.
Perhaps if the mesenteric glands were nicely inspected in the dissections of these patients; and if the thoracic duct, and the larger branches of the lacteals, and if the lymphatics, which arise from the bladder, were well examined by injection, or by the knife, the cause of diabetes might be more certainly understood.
The insect has its fore-legs as well as its wings. The legs all descend from the under surface of the thoracic piece, while the wings arise from its upper surface. As the wings are flapping above during flight, the unchanged legs are dangling below, in full complement. The wings are, therefore, independent and additional organs. They have no relation whatever to limbs, properly so called.
Word Of The Day