91 



the assistance of Drs. Martin-Magron, F. Bonnefin, Crouzet, and 

 Mr. Moyse. 



We drew about a pound of blood from the carotid of a strong 

 dog. The blood was beaten and defibrinated before coagulation 

 could take place in it, and 10 minutes after 11 o'clock the injec- 

 tion was begun. It was made in the brachial artery of the left 

 arm, in the middle of its length, where the arm had been ampu- 

 tated. As soon as the blood had been thrown in the artery, 

 some reddish spots appeared in different parts of the skin of the 

 fore-arm, of the hand, and more particularly of the wrist. These 

 spots became larger and larger, and the skin had the appearance 

 it has in rubeola. Soon after, the whole surface of the skin was 

 of a violet reddish hue. In a few minutes this color disappeared, 

 and was replaced by the natural hue of the skin during life. The 

 skin became elastic and soft, as in a living man, and we saw the 

 bulbs of its hair becoming erected and presenting the appearance 

 called eutis anserina. By increasing and diminishing alternately 

 the impulsion given to the blood, we succeeded in producing the 

 beatings of the pulse in the radial artery. The veins were dis- 

 tinct and full as during life. 



A short time after, the fingers, which had been extremely stiff, 

 relaxed, and rigidity disappeared also in the other parts of the 

 limb. 



Forty-five minutes after 11 o'clock P. M., irritability had re- 

 turned in all the muscles of the limb operated on. The degree 

 of irritability, more particularly in the muscles of the arm, (tri- 

 ceps, biceps and others) was very considerable, and much greater 

 than I had seen it at the time the corpse was first examined 

 (about five o'clock P. M.) Irritability was still present in almost 

 all the muscles of this limb at 4 o'clock A. M., (20 hours after 

 the decapitation,) when I was obliged, from extreme fatigue, to 

 abandon further investigation. 



The blood injected was at 23 centig. (73.4 Fahr.) when I 

 began the operation, and the atmosphere was at 19j centig. 

 (66.66 Fahr.) 



In this experiment, about one pound of defibrinated dog's 

 blood gave irritability for more than five hours to all the 

 muscles of a limb, from the middle of the arm to the hand. 



6th. Every one knows the singular fact, that Vibriones and 



