On making an examination the mouth of the Womb will be found to be dilating, and a discharge of mucus, tinged with blood, issuing from it. The membranes may also be felt protruding into the Vagina, and distended, like a bladder. The female complains of being drawn powerfully together in the inside; she trembles, and gasps for breath; her pulse sinks, and she often becomes sick and deadly faint; she complains of great thirst, and breaks out into profuse perspiration; frequently she will weep, and apparently suffer from some terrible apprehension, while her strength will be completely exhausted. Occasionally however, she will be perfectly passive, and almost immoveable, appearing as if in a dream. The pains however, gradually become more and more acute, and closer together; the patient is excited and irritable; her pulse becomes quicker again, the thirst increases, and vomiting frequently ensues. Before each pain she frequently experiences a severe chill, with chattering of the teeth, and not unfrequently becomes perfectly delirious. With each pain the mouth of the Womb expands more and more, till at last it totally disappears, and the cavity of the Uterus and the Vagina form but one uniform passage, which is completely occupied with the distended membranes, or bag of waters, which may be felt like a soft round tumor. This is well represented in the following Plate:-- [Illustration: PLATE XXXVIII.--_a._ Fig. 1. Fig. 2. Fig. 1 shows the state of the parts at the beginning of labor. The mouth of the Womb is considerably dilated, and the Membranes, A, are protruding slightly. Fig. 2 shows the state of the parts at the end of the first period. The neck of the Womb is now so fully dilated that it forms a continuous passage with the Vagina, while the bag of waters, A, projects far down and occupies the whole width of the canal.] The first period may be much protracted, and is generally very exhausting, though not attended with any danger or special difficulty. SECOND PERIOD. At this stage all the previous symptoms become much exaggerated. The contractions are more powerful, and the pains more acute, but with a perfect period of repose between them, during which the female will feel quite easy, and even sometimes fall asleep, but only to be aroused by the pains coming on again. The muscles of the Abdomen, and the diaphragm, are now called into play; the patient strains, or violently bears down, and pants with exertion, while the perspiration streams from every pore, the pulse quickens, and the expression of the countenance betrays the wildest anxiety and excitement.