On September 30, 1885, I attended Mrs. B. in her third accouchement. I found a breech presentation, in the sacro-pubic anterior position. The child was a female, and was born after about four hours' ordinary labor. The cry was feeble at time of birth, and gradually grew weaker until, at the end of fifty minutes, the child died; no special effort was made to assist it to live. It weighed about 7 lbs. The body, so far as external inspection could determine, was in every way normal and well developed. The four extremities were entirely absent. The ends of the clavicle and scapula could be distinctly felt; but there was no sign of a remnant of an arm. The lower extremities were represented, each, by a fleshy teatlike protuberance, about ½ inch long; these did not appear to be attached to the pelvic bones, nor could I find any small