"a pressure of the foot was instantly felt by each."

From: Wikipedia

"Millie and Christine were born on July 11, 1851, to parents who were slaves on the plantation of Mr. Alexander McCoy. The plantation was near the town of Whiteville, North Carolina, which resulted in the girls also being referred to as The Carolina Twins. Prior to the sisters' birth, their mother had borne seven other children, five boys and two girls, all of ordinary size and form.
     They were sold to a showman named Joseph Pearson Smith at birth, but were soon kidnapped by a rival showman. The kidnapper fled to the United Kingdom but was thwarted, since the United Kingdom had outlawed slavery in the 1830s.
      Smith traveled to Britain to collect the girls and brought with him their mother, Monimia, from whom they had been separated. He and his wife provided the twins with an education and taught them to speak five languages, dance, play music, and sing. For the rest of the century, the twins enjoyed a successful career as 'The Two-Headed Nightingale,' and appeared with the Barnum circus. In 1869, a biography on the twins, titled History and Medical Description of the Two-Headed Girl, was sold during their public appearances. On October 8, 1912, Millie and Christine died of tuberculosis."
— Wikipedia
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"Since the days when the Siamese twins arrived in this country and occasioned so much excitement in medical circles, no illustration of the freaks of nature has been found at all approaching in its remarkable character to that given in the person of Christine Millie, a native of North Carolina, who arrived at this port on Tuesday, per City of Brussels, from New York.
     The young person who is about to proceed to London for exhibition, is the child of parents formerly slaves in North Carolina, still living, and having several other children, and was herself born a slave. It is scarcely possible by a written description to convey anything like an adequate idea of the marvelous physical organization of this extraordinary being. In figure, Christine Millie, who is 19 years of age, is rather short, and possesses two heads upon one body, with two well-developed chests and four arms.
     This portion of the frame is as perfectly distinct in each figure as if the upper part were the heads of two persons; but at the lateral posterior portion of the pelvis there is but one body, with one spine, the lower parts of which gradually incline outwards from each side, and terminate with four legs.

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     The faces are of the African type, with thick lips and large mouth, denoting the race from which the girl has descended; but [this small word reveals so much] in conversation the countenances brighten with intelligence, and those who have had the opportunity of seeing the girl could not fail to be pleased with the geniality of her manner and with the store of information which she has at her command. The question which naturally arises, and which it seems difficult to solve, is, whether this is one being, or whether, in some extraordinary manner, two persons have thus marvelously joined together.
     A very careful anatomical examination, made by the professors at Jefferson Medical College, America, has led to the discovery that the lungs, heart, and functions of digestion are those of two persons, apparently perfect and healthy in each, but that the whole of the lower organization of the body is that of one female, with the exception of the four legs.
     Each head is said to possess separate intellectual faculties, as entirely distinct as the brain power of two different individuals, and the volitions of the will are independent, but very much in harmony with each other. In proof of this the two mouths will at the same time converse with different persons upon topics of a widely different character, and will join in singing a duet, one taking the soprano and the other the contralto part. Experiments have been tried with a view to demonstrate the nervous system, which showed that whilst above the junction the sense of feeling was separate and distinct in each, below the point of union it was common. Thus, a hand placed upon the shoulder of either was noticed only by the one touched, but a pressure of the foot was instantly felt by each."
— from: Biographical Sketch of Millie Christine, the Carolina Twin. Surnamed the Two-Headed Nightingale and the Eighth Wonder of the World: Electronic Edition (Documenting the American South)
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