"Herbert Spencer, in the Contemporary Review for May, 1893, gives several cases communicated to him by his friend Mr. Fookes, whom Spencer says is often appointed judge of animals at agricultural shows. After giving various examples he goes on to say: 'A friend of mine near this had a valuable Dachshund bitch, which most unfortunately had a litter by a stray sheep-dog. The next year the owner sent her on a visit to a pure Dachshund dog, but the produce took quite as much of the first father as the second, and the next year he sent her to another Dachshund, with the same result. Another case: A friend of mine in Devizes had a litter of puppies unsought for, by a setter from a favorite pointer bitch, and after this she never bred any true pointers, no matter what the paternity was.'
"Lord Polwarth, whose very fine breed of Border Leicesters is famed throughout Britain, and whose knowledge on the subject of breeding is great, says that 'In sheep we always consider that if a ewe breeds to a Shrop ram, she is never safe to breed pure Leicesters from, as dun or colored legs are apt to come even when the sire is a pure Leicester. This has been proved in various instances, but is not invariable.'"
Hon. Henry Scott says: "Dog-breeders know this theory well; and if a pure-bred bitch happens to breed to a dog of another breed, she is of little use for breeding pure-bred puppies afterward. Animals which produce large litters and go a short time pregnant show this throwing back to previous sires far more distinctly than others—I fancy dogs and pigs most of all, and probably horses least. The influence of previous sires may be carried into the second generation or further, as I have a cat now which appears to be half Persian (long hair). His dam has very long hair and every appearance of being a half Persian, whereas neither have really any Persian blood, as far as I know, but the grand-dam (a very smooth-haired cat) had several litters by a half-Persian tom-cat, and all her produce since have showed the influence retained. The Persian tom-cat died many years ago, and was the only one in the district, so, although I cannot be absolutely positive, still I think this case is really as stated."
Breeders of Bedlington terriers wish to breed dogs with as powerful jaws as possible. In order to accomplish this they put the Bedlington terrier bitch first to a bull-terrier dog, and get a mongrel litter which they destroy. They now put the bitch to a Bedlington terrier dog and get a litter of puppies which are practically pure, but have much stronger jaws than they would otherwise have had, and also show much of the gameness of the bull-terrier, thus proving that physiologic as well as anatomic characters may be transmitted in this way.
After citing the foregoing examples, Blaikie directs his attention to man, and makes the following interesting remarks:—
"We might expect from the foregoing account of telegony amongst animals that whenever a black woman had a child to a white man, and then married a black man, her subsequent children would not be entirely black. Dr. Robert Balfour of Surinam in 1851 wrote to Harvey that he was continually noticing amongst the colored population of Surinam 'that if a negress had a child or children by a white, and afterward fruitful intercourse with a negro, the latter offspring had generally a lighter color than the parents.' But, as far as I know, this is the only instance of this observation on record. Herbert Spencer has shown that when a pure-bred animal breeds with an animal of a mixed breed, the offspring resembles much more closely the parent of pure blood, and this may explain why the circumstance recorded by Balfour has been so seldom noted. For a negro, who is of very pure blood, will naturally have a stronger influence on the subsequent progeny than an Anglo-Saxon, who comes of a mixed stock. If this be the correct explanation, we should expect that when a white woman married first a black man, and then a white, the children by the white husband would be dark colored. Unfortunately for the proof of telegony, it is very rare that a white woman does marry a black man, and then have a white as second husband; nevertheless, we have a fair number of recorded instances of dark-colored children being born in the above way of white parents.
"Dr. Harvey mentions a case in which 'a young woman, residing in Edinburgh, and born of white (Scottish) parents, but whose mother, some time previous to her marriage, had a natural (mulatto) child by a negro man-servant in Edinburgh, exhibits distinct traces of the negro. Dr. Simpson—afterward Sir James Simpson—whose patient the young woman at one time was, has had no recent opportunities of satisfying himself as to the precise extent to which the negro character prevails in her features; but he recollects being struck with the resemblance, and noticed particularly that the hair had the qualities characteristic of the negro.' Herbert Spencer got a letter from a 'distinguished correspondent' in the United States, who said that children by white parents had been 'repeatedly' observed to show traces of black blood when the women had had previous connection with (i.e., a child by) a negro. Dr. Youmans of New York interviewed several medical professors, who said the above was 'generally accepted as a fact.' Prof. Austin Flint, in 'A Text-book of Human Physiology,' mentioned this fact, and when asked about it said: 'He had never heard the statement questioned.'
"But it is not only in relation to color that we find telegony to have been noticed in the human subject. Dr. Middleton Michel gives a most interesting case in the American Journal of the Medical Sciences for 1868: 'A black woman, mother of several negro children, none of whom were deformed in any particular, had illicit intercourse with a white man, by whom she became pregnant. During gestation she manifested great uneasiness of mind, lest the birth of a mulatto offspring should disclose her conduct.... It so happened that her negro husband possessed a sixth digit on each hand, but there was no peculiarity of any kind in the white man, yet when the mulatto child was born it actually presented the deformity of a supernumerary finger.' Taruffi, the celebrated Italian teratologist, in speaking of the subject, says: 'Our knowledge of this strange fact is by no means recent for Fienus, in 1608, said that most of the children born in adultery have a greater resemblance to the legal than to the real father'—an observation that was confirmed by the philosopher Vanini and by the naturalist Ambrosini. From these observations comes the proverb: 'Filium ex adultera excusare matrem a culpa.' Osiander has noted telegony in relation to moral qualities of children by a second marriage. Harvey said that it has long been known that the children by a second husband resemble the first husband in features mind, and disposition. He then gave a case in which this resemblance was very well marked. Orton, Burdach (Traite de Physiologie), and Dr. William Sedgwick have all remarked on this physical resemblance; and Dr. Metcalfe, in a dissertation delivered before this society in 1855, observed that in the cases of widows remarrying the children of the second marriage frequently resemble the first husband.
"An observation probably having some bearing on this subject was made by Count de Stuzeleci (Harvey, loc. cit.). He noticed that when an aboriginal female had had a child by a European, she lost the power of conception by a male of her own race, but could produce children by a white man. He believed this to be the case with many aboriginal races; but it has been disproved, or at all events proved to be by no means a universal law, in every case except that of the aborigines of Australia and New Zealand. Dr. William Sedgwick thought it probable that the unfruitfulness of prostitutes might in some degree be due to the same cause as that of the Australian aborigines who have had children by white men.
"It would seem as though the Israelites had had some knowledge of telegony, for in Deuteronomy we find that when a man died leaving no issue, his wife was commanded to marry her husband's brother, in order that he might 'raise up seed to his brother.'"