+------+------+---------------+---------------+----------------------------+ | | | Father. | Mother. | Condition of tail in | | | | | | offspring. | | | +------+--------+------+--------+----------+--------+--------+ |Serial| Pen | | | | | | | | | No. | No. | | From | | From | | | | | | | No. | Serial | No. | Serial | Present. | Small. | Absent.| | | | | No. | | No. | | | | +------+------+------+--------+------+--------+----------+--------+--------+ | 34 | 742 | 2978 | 27 | 2601 | 29 | 0 | 0 | 4 | | 35 | 854 | 2978 | 27 | 3430 | 27 | 0 | 0 | 9 | | 36 | 742 | 2978 | 27 | 3430 | .. | [A]2 | 0 | 7 | | 37 | 854 | 2978 | 27 | 2977 | 27 | [B]1 | 0 | 1 | | +----------+--------+--------+ | Total | 3 | 0 | 21 | +---------------------------------------------+----------+--------+--------+ [A] Both from chicks that died in shell. [B] From a hatched chicken. Table 30 is unfortunately small; one may say, fragmentary. Rumpless hens are incapable of copulating unless the tail coverts are trimmed; moreover my birds have been so much inbred that they are very weak; finally, the chicks are so small that it is impracticable to rear them in brooders and the eggs are particularly apt to be broken by the brooding hens. However, it suffices to show that two tailless fowl are able to throw some tailed offspring. The second lot of rumpless fowl, namely, those that arose _de novo_ in my yards, must now be considered. In 1906, 2 birds hatched out from ordinary tailed strains. As one was a cock and the other a hen these were mated in 1907. The cock (No. 2464) came from No. 71♀ (a pure White Leghorn bred by myself from original White Leghorn stock described in my 1906 report) and No. 235♂ (an F1 hybrid between one of these White Leghorns and my original Rose-comb Black Minorca). The hen was No. 1636. Her mother (No. 618) was an F1 hybrid between a Minorca and Dark Brahma of series V, 1906 report, and her father (No. 637) had the same origin. Thus the parents and grandparents of both of these new rumpless birds were well known to me and known to be fully tailed and to throw only tailed birds, with the exception of these two birds.