Dr. B. having stated the foregoing results and inferences, proceeds by relating instances of severe injury sustained by the _human_ body, without being followed by death. These are confirmatory of his inferences from the experiments on rabbits. The instances given are--an os uteri torn off; extensive laceration of the uterus and rectum in labour; four uteri extirpated on account of chronic inversion, (p. 13.) One of these last under his own care. It was removed by a wire, and came off in 11 days, without one bad symptom, (p. 14.) Rupture and laceration of the abdominal coverings, four fingers' breadth, the bowels hanging out, (p. 14.) Two spleens removed; one in a soldier after the battle of Dettingen, who recovered without inconvenience afterwards; the other in a Mexican, whose case is related by Dr. O'BRIEN, in his Inaugural Essay, Edinb. 1818, (p. 15.) Three cases of rupture of the dropsical ovary. Two cases of opening into the abdomen, for the extirpation of dropsical ovaries, (p. 18.) Five cases of laceration of the uterus by natural efforts. Four of the women died, but in the fifth, Dr. BLUNDELL turned and delivered, after the child had escaped into the peritoneal sac, and the woman recovered, (p. 20.) Cesarian operation, three times by friend of Dr. HAIGHTON; once successfully, (p. 22.) Dr. B. says, "From these (facts) few as they are, I feel conscious that no certain inference can yet be drawn; though _presumptive_ inferences certainly may, and they seem to me to be the following: "1st. Small wounds, as tapping, hernia, &c. do not induce fatal peritonitis; and therefore the vulgar opinion that inflammation in a spot of the peritoneum will almost invariably diffuse itself over the greater part of it, is probably unfounded. "2nd. Extensive divisions of the peritoneum are not necessarily fatal by inflammation or otherwise, and _probably_ not generally so. "3d. That the womb, spleen, and ovaries, may be removed in the mode mentioned, without necessarily, and, _presumptively_, without generally destroying life. "4th. That the gravid uterus may be torn open; the child may escape into the peritoneal sac; the os uteri may be torn off: not indeed, so far as these cases may be relied on, without great danger, but twice, in seven instances, without death. p. 28. "5th. The peritoneum and abdominal viscera will bear more injury than the British surgeons seem disposed to admit. "6th. That the above observations on the human abdomen, are in unison with those drawn from observations on the rabbit; and that observations made on the brute have more correspondence with those on the human being, than is generally believed."