258 LOTSY AND KUIPER, A PRELIM. STATEMENT OF THE RESULTS OF MR. 
1920 
578.1 &, born June 23 1920, sent to Mook Dec. 1921, to the senior 
author 1923, still alive Jan. 2. 1924 
578.2 © born June 1920, died Febr. 21 1921, no further record. 
Another F, was obtained from the cross 391.7 2 x 391.10 g, it got 
the registernumber 580 
1920 
580.1 @ born 13 July 1920, sent to Mook Dec. 1921, to the senior 
author 1923, still alive Jan. 2. 1924. 
580.2 | 
580.3 
580.4 | 
Of these four animals we have no other record than that at birth 
three were dark and one somewhat lighter; apparently three of them 
died young, as there is no further record of them. 
The description of the two surviving F3 animals follows: 
578.1 & ts a large animal, resembling a partridge-colored Leghorn 
cock, (Pl. IX fig. 13) with an enormous comb, with 6 large and 1 small 
teeth, the second tooth having two secondary teeth and white ear- 
lappets. The iris is very pale yellow, the comb and the gular wattles are 
red. The pattern is very bankiva.-like, practically wholy so, with the 
exception of a little brown in the otherwise almost pure black ventral 
surface. The white down of the feathers at the root of the tail is visible, 
the tailcoverts are green-violet, the tail greenblack. The legs are pale 
blue with distinct longitudinal red sonnerati-stripes. 
580.1 2 Pl. IX fig. 12 is a small hen with red comb, earlappets and 
wattles. The upper surface is that of a rather light partridge coloured 
bantam ; some of the secondaries are crossbarred, others pencilled. The 
iris is goldstone-coloured. The breast 1s palebrown, the belly almost 
white, the tail black and brown, the leggs willowy with rudimentary 
born 13 July 1920 
red sonneratstripes. 
The appearance of the large cock, 578.1 3, similar to a partridge-col- 
ored Leghorn with its large comb and white earlappets in the F, is interes- 
ting; conclusions can not be drawn from its appearance however, on 
