Licence: Public Domain Mark
Credit: Principles of forensic medicine / by William A. Guy and David Ferrier. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![part of the urachus, of the intestinal tube, and of filaments which represent the umbilical vessels. The placenta forming; the chorion and amnion still separate; the umbilical vessel very large. Points of ossification in the clavicle and maxillary bone. Two Months.—Lengthy variously stated at from 1^ inch to 4 inches. Weighty 2 to 5 drachms. Rudiments of nose, lips, and eyelids; organs of generation visible: arms and legs detached from trunk; anus marked by a dark spot; rudiments of lungs, spleen, and supra-renal capsules; caecum behind the umbilicus; digestive canal withdrawn into the abdomen; urachus visible; chorion beginning to touch the amnion at the point opposite the insertion of the placenta, which begins to assume its regular form ; umbilical vessels becoming twisted. Points of ossification in frontal bone and ribs. Three Months.—Length, variously stated at from 2 to 6 inches. Weight, from 1 ounce to 3 ounces. The head voluminous; the eyelids and lips in contact; metnbrana pupillaris visible; fingers separated ; lower extremities longer than rudimentary tail; parts of generation prominent, and the sex distinguishable by the lens; thymus and supra-renal capsules present; the ventricles of the heart distinct. The decidua uterina and reflexa in contact; the funis containing umbilical vessels and a little gelatinous matter; placenta completely isolated; the umbilical vesicle, allantois, and omphalo-mesenteric vessels have disappeared. Four Months.—Length, variously stated at from 4\ to 81- inches. Weight, 2-| or 3, to 7 or 8 ounces. Skin rosy, and tolerably dense; mouth very large and open; membrana pupil- laris very evident; nails appearing; sex distinct; gall-bladder appearing; meconium in duodenum; csecal valve visible; um- bilicus near the pubes. Complete contact of chorion and amnion ; membrane forming at point of attachment of placenta to uterus. Points of ossification in inferior parts of sacrum; ossicula audi- toria ossified. Five Months.—Length, variously stated at from 6 to 10^ inches (a still-born male 13, female 13|; male born alive 9, female 10, inches). Weight, 5 or 7 ounces to 1 pound 1 ounce. (A still-born male, 1 pound 13 ounces [Schmitt]; two still-born twin females, 1 pound 6 ounces, and 11 ounces [G-.]). Volume of head still comparatively great; nails very distinct; hair of the head showing as a light down ; skin without sebaceous covering; heart and kidneys very voluminous ; gall-bladder distinct; meco- nium of a yellowish-green tint at commencement of large intes- tines. Points of ossification in pubes and os calcis; germs of the permanent teeth.](https://iiif.wellcomecollection.org/image/b2196516x_0104.jp2/full/800%2C/0/default.jpg)
