+-------------+------------+------------+-----------+-----------+ | | _NnRr._ | _Nnr2._ | _n2Rr._ | _n2r2._ | | | | | | | | | Black with | Black. | Game. | Dark | | | traces of | | | Brahma | | | red in | | | (without | | | male. | | | red). | +-------------+------------+------------+-----------+-----------+ | | _P. ct._ | _P. ct._ | _P. ct._ | | | | | | | Expectation | 50 | 25 | 25 | | Realization | 51 | 27 | 22 | +-------------+-------------------------+-----------+-----------+ In the case where both parents are F2 or F3 it is impossible to summate results, since the gametic formulæ of the different parents are so diverse; but the same types of solid blacks, black with trace of red in the males, Game-colored males and females, and Game with red replaced by white repeatedly occur. My plan of increasing red in the Dark Brahmas met with wholly unexpectedly prompt success, but not in the way anticipated. The result was not due to selection, but to the recombination of the factors necessary to make the Game plumage coloration. (2) _Production of a buff race by selection._--The second test was directed toward the production _de novo_ of a new buff race from a Game fowl. As is well known, all of our red and "buff" races, like the Buff Leghorn, Rhode Island Red, and others, have been derived from the Buff Cochin that came to us from China. The fact that a buff bird has, so far as I have been able to learn, not been produced in western countries indicates the probability that it can not be so produced at will; but the attempt seemed worth while. I began with a Black Breasted Red Game because its plumage color is that of the primitive ancestor of domesticated poultry, and on that hypothesis the ancestor of the buff races. If these buff races were produced by extending the red through selection of the reddest offspring, that should be possible now as in the past. A start in the direction of creating a buff bird would seem to require the elimination of the black. By crossing a black and red Game with a White Leghorn I got, in 1905, 2 white pullets with red on breast and some black specks. By crossing a Game Bantam (wingless) with a White Leghorn I got white birds with red present on wing-bar of male and breast of females and also some black spots.