104 INHERITANCE IN POULTRY. 



EXPLANATION OF PLATES. 

 PLATE I. 



FiG. I. White Crested Black Polish, 9 5. One of the females crossed with the Single- 

 combed Black Minorca (cf. fig. 3) to produce the female hybrid shown in 

 fig. 5- (H.A. H.) 



FiG. 2. White Crested Black Polish, $ 30. To show the male type of the Polish race, 

 which, when crossed with the Minorca (fig. 4), produces male hybrids like 

 fig. 6. (H. A. H.) 



FiG. 3. Single Comb Black Minorca, 9 13. The mother of the hybrids, Minorca X Polish, 

 represented by fig. 5. 



FiG. 4. Single Comb Black Minorca, $ 12. The father of various Polish X Minorca 

 crosses, of which a male is represented in fig. 6. 



FiG. 5. First Hybrid between Polish and Minorca, pullet. Compare the females of the 

 parental races, figs, i and 3. 



FiG. 6. First Hybrid between Polish and Minorca, cockerel. Compare the males of the 

 parental races, figs. 2 and 4. 



The figures marked H. A. H. are from photographs made by Mr. H. A. Hackett. 



