“At 10 a.m. on November 1, 1898, a large dog (a German brach), weighing 33 kilogrammes, was running about in some tall grass. It returned to its master, looking unhappy, with its eyelids swollen. Thinking that his dog had been bitten by a _Naja_, a snake which swarms round Konakry, he took it to the hospital. The animal was unable to cover the distance, which was only 300 metres; it was dragged along, but collapsed, and had to be carried. Its head was swollen, it panted, and its breathing was rapid and irregular; there was profuse salivation. On the inner face of the right ear the marks of the two fangs of the reptile were distinctly visible. A hypodermic injection of 10 c.c. of antivenomous serum was immediately given in the right flank: this was at 10.10 a.m. At 11 o’clock the symptoms appeared to become less acute; the animal was easier, and its breathing became less rapid and more regular. At 1 o’clock the animal succeeded in getting on to its feet; the œdema had somewhat diminished, and it was able to half open its eyes. At 6 o’clock the dog was taken back to its master’s house; it seemed just as lively as though nothing had happened. “On the following morning there was still a small amount of œdema in the eyelids, but the appearance of the head had become normal.” B.--Pelias berus (Common Viper). XLI.--Case reported by M. de Maupas, of Challay, by Trôô. “About 1 p.m., on July 30, 1898, a fairly large pointer was brought to me, bitten in the right paw. On shaving off the hair the marks of the two fangs of the snake were clearly visible. The wound had bled a little, and the injured limb was painful and swollen. I ligatured the paw above the joint, and injected a bottle of antivenomous serum, which had been in my possession since September 6, 1897. The effect was very rapid; after a quarter of an hour the dog reopened its eyes, which until then had been half closed. Towards 5 o’clock I removed the ligature. On the next day but one the swelling had almost disappeared, and the dog took its food of its own accord; it ran about and seemed lively.” XLII.--Case reported by M. de Villiers, Mayor of Villiers-le-Duc, Côte-d’Or. “About 2 p.m., on May 23, 1898, the widow Veillard, of Villiers-le-Duc, while driving her herd of cows to pasture among the brushwood, saw a viper which she killed, and then, a few moments later, three others in succession, which she likewise killed. Madame Veillard thought of leaving this place, which seemed to her to be too much infested, when one of her cows, which was quietly feeding, swerved violently and dashed off through the scrub. With the help of her dog she succeeded in recovering the cow, which appeared uneasy, ceased to feed, and had a swollen muzzle. Madame Veillard then decided to return to the village.