REFERENCES TO THE PLATES.

PLATE I.

Fig. 1. Corpus luteum of the tenth week, in a case of ovario-tubal gestation, separated from the ovary. See p. 359.

Fig. 2. Ovary of a woman who died in the second month of pregnancy; exhibiting the prominence of the part containing the corpus luteum, and the color of that structure perceptible through the investing coat of the ovary; the vascular cicatrix being as yet unhealed. See pp. 354, 356, and wood-cuts in p. 355.

Fig. 3. The same ovary opened, and disclosing the corpus luteum with a large central cavity; from which is still to be seen the little channel by which the ovum escaped, terminating at the vascular cicatrix on the surface: the vascularity of the ovary and corpus luteum are accurately represented, and also the peculiar convoluted, or lobular structure of the latter. The part was not injected. See table p. 361, No. 23.

Fig. 4. Corpus luteum of the

fourth month, with vessels running through its substance, and exhibiting a large-sized cavity. See p. 359, and Table, No. 11.

Fig. 5. Corpus luteum of the sixth month, showing the vessels pervading its substance, and a very distinct specimen of the inner coat of the Graafian vesicle lining its cavity, which is of a good size. See p. 359, and Table, No. 36. This specimen is specially referred to in p. 352.

Fig. 6. Corpus luteum in the fourth month of pregnancy, traversed by numerous vessels, and of a peculiar appearance; specially referred to p. 365. See also figures in p. 366.

Fig. 7. The ovary of a woman who died sixteen days after mature delivery; the situation of the corpus luteum is marked by the

angular cicatrix, which is seen near the upper end of the ovary, and is still slightly vascular. See p. 367.

Fig. 8. The same ovary laid open by a section carried through the corpus luteum, which, in this case, is rather smaller than it usually is at such a period; but its vessels were still permeable, and some of them are seen injected: the stellated central line is very distinct. See p. 367, and Table, No. 30.

Fig. 9. Corpus luteum of six months, in a case of sudden death from heart disease; the central cavity is unusually large at such a period, and lined by a well-marked white membrane, the inner coat of the Graafian vesicle. See Table, No. 31.

Fig. 10. Corpus luteum at the end of the ninth month; the yellow wall is thickened, and, when opened, showed distinct vessels in its substance; the central cicatrix is well marked. See p. 359, and Table, No. 40.

PLATE II.

Fig. 1. The corpus luteum, two days after mature delivery; the woman died of inflammation of the uterus; the corpus luteum was so vascular as to be quite crimsoned by the injection. See p. 359.

Fig. 2. Another specimen of the same kind, but of larger dimensions. See p. 359, and Table, No. 38.

Fig. 3. Corpus luteum, five weeks after mature delivery; it is diminished in size, condensed in texture, losing its color and vascularity, but exhibits distinctly the central radiated cicatrix. See p. 367, and Table, No. 32.

Fig. 4 Corpus luteum in the twelfth week after mature delivery; it has almost entirely lost its distinctive color, its texture is like that of a cut apple, and its dimensions are greatly reduced. See p. 368, and Table, No. 33.

Fig. 5. Corpus luteum five months after mature delivery; is greatly diminished in size, and retains but slight traces of its original distinctive characters.

See p. 368, and Table, No. 34.

Fig. 6. Corpus luteum in the ovary of a woman delivered of twins in the sixth month; it is of large size, and its substance is very vascular; in this case, there was but the one corpus luteum. See p. 375, and Table, No. 28.

Fig. 7. Corpus luteum in the ovary of a woman who died of hemorrhage, with uterine hydatids at the end of the fourth month; it has all the distinctive characters of that which accompanies healthy pregnancy, well marked, is of considerably more than. the ordinary size, with a large central cavity, and its substance pervaded by numerous vessels; this specimen was minutely. injected. See pp. 220, 374, and Table, No. 29.

Fig. 8. Ovary from the body of a young woman, soon after a menstrual period; it exhibits one recent, and pretty large corpus luteum;

with several smaller, in different stages of decline and atrophy. See pp. 153, 389, 392, et seq.

Fig. 9. A specimen of a spurious corpus luteum which exhibits neither central cavity, stellated line, nor any vessels in its substance, although the ovary was minutely injected.

Fig. 10. An ovary containing spurious corpora lutea; it was injected until the coloring matter was forced into its substance; yet, it will be observed, that not a particle entered the spurious products, which were quite destitute of vessels. See pp. 385, et seq., 392, et seq.