300 DESCRIPTIONS OF PLATES. 



DESCRIPTIONS OF PLATES. 



PLATE 17. 



FIG. 175. A portion of a chorionic vesicle, showing appearances identical with tissue cultures. No. 545. X135. 



FIG. 176. Fetus showing gluing of hand to face. No. 316. 



FIQ. 177. Villi showing obliteration of vessels by maceration and disintegration. No. 640. 



FIG. 178. Villi showing obliteration of vessels by proliferation. No. 317. X97.5. 



FIG. 179. Macerated tubal specimen imbedded in clot and undergoing lysis. No. 1938. X0.75. 



FIG. 180. Fetus showing continuity of epidermis across the mouth, with obliteration of the labial slit. No. 885. X 4.5. 



FIG. 181. Macerated tubal specimen, only the chorionic vesicle remaining. No. 2035. X0.75. 



FIG. 182. Slightly macerated villi. No. 275. X37.5. 



FIG. 183. Greatly macerated villi. No. 7236. 



FIG. 184. Macerated, long-retained villi, with lumina of capillaries plugged with coagulum. No. 286. X37.5. 



FIG. 185. Fetus in sagittal section showing maceration, especially of the nervous system. No. 285. X4.5. 



FIG. 186. Cross section of cyema showing homogeneous structure produced by maceration. No. 205. X 11.25. 



PLATE 18. 



FIG. 187. Slight swelling of fetus from brief maceration. No. 2146. X2. 



FIG. 188. Matted, slightly macerated villi. No. 1878. X4. 



FIG. 189. A macerated, disproportional cyema 4 mm. long, showing a development of 5.5 mm. No. 786. X4. 



FIG. 190. A well-preserved cyema 5.5 mm., of the same development as the preceding. No. 1380. X4. 



FIGS. 191-192. Cyemata illustrating failure of extension of the body upon maceration. Nos. 1299 ( X2) and 2216 ( X4). 



FIGS. 193-196. Cyemata illustrating changes in form due to maceration. Nos. 208 (X2), 1296 (X2.67), 1697 (X2), 



and 1477 (X2). 



FIG. 197. Illustrating beginning changes in form due to maceration. No. 705. X1.35. 

 FIGS 198-204. Similar specimens, showing more pronounced changes. In figure 203 the structure of the specimen 



is chaotic. Nos. 2244 (X2.67), 1891 (X2), 1655 (X2.67), 1260 (X2.67), 1333 (X2.67), 1379 



(X2.67). 



FIGS. 205-206. Doubtful normally developed cyemata. Nos. 1226 (X2.67) and 2361 (X4). 

 FIG. 207. A cyema illustrating post-partum changes. No. 589. X2.67. 



FIG. 208. Cyema showing maceration sulci and ridges, and drooping of the limbs. No. 52 If. X1.66. 

 FIG. 209. Cyema showing maceration sulci and ridges, and swelling of the cord. X2. 

 FIG. 210. Normal, well-preserved cat fetus. 



FIG. 211. Normal, poorly preserved cat fetus of approximately the same length. 

 FIG. 212. Appearance of fetus before fixation. No. 1358. X2. 

 Fio. 213. The same specimen, showing wrinkling due to fixation and staining. X2. 

 FIG. 214. Macerated, distorted single-ovum twins. No. 2258. X2.67. 



FIG. 215. Minor changes in relief, due to maceration. Swelling and constriction of cord. No. 2014. X2. 

 FIG. 216. An intermediate maceration form. No. 1495d. X2.67. 



PLATE 19. 



FIG. 217. Interior of the chorionic vesicle showing subchorial hematomata. No. 1495d. X0.77. 



FIG. 218. A fetus and cord showing marked maceration changes. No. 797. X1.35. 



Fio. 219. An older fetus, showing bleb-formation and curvature in extremities, due to maceration and retention. 



No. 1860. XI- 35. 



FIG. 220. A fetus showing marked clubbing of the extremities and obliteration of the features. No. 1958. X0.87. 

 FIGS. 221-222. Extremities of same specimen. X2.67. 

 FIG. 223. External appearance of fetus in situ. No. 1751. X0.57. 



FIG. 224. An older, macerated fetus, with extremities extended instead of folded. No. 1462. X0.77. 

 FIG. 225. A similar specimen. No. 1309. X0.23. 



FIG. 226. A long-retained, soft, rolled-up form, photographed in extension. No. 1775. X0.47. 

 FIG. 227. A similar specimen with markedly flexed head. No. 1525. X0.66. 

 FIG. 228. A similar specimen. No. 1976. X0.47. 



FIG. 229. A similar specimen with mummified chorionic vesicle. No. 1850. X6. 

 FIG. 230. A decidedly mummified fetus. No. 1295a. X0.77. 



FIQ. 231. Unilateral development of villi in a vesicle classed as normal (?). No. 2092. (See Chapter XV.) X1.35. 

 FIG. 232. A somewhat macerated young vesicle with quite uniformly distributed villi which are slightly abnormal in 



form and structure. No. 1878. (See Chapter XV.) X4. 

 FIG. 233. A portion of same specimen, showing the somewhat more than normally bulbous and rather matted 



villi. X2.67. 

 Fio. 234. A very softened, macerated fetus. X0.5. 



