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THE AMERICAN NATURALIST [Vol. XL VII 



Breast and lower throat slightly darker in H than in D, but 

 very similar. Rest of lower pails about the same in both crosses. 



Three hen birds were reared from pen H. They all showed 

 strong tail barring and other well-marked Reeves's characters. 



The females of the two species involved are quite different, 

 and it is therefore to be regretted that there are no specimens 

 from both crosses for comparison. 



Summary 



That this somatic difference between reciprocal crosses in other 

 pheasants is not always present, is shown by the uniform Fj 

 generation in the two crosses, Amherst X Gold, of the genus 

 Chrysolophus, bred by myself. In the work of Professor Alle- 

 sandro Ghigi and Mrs. Haig-Thomas on pheasants no reciprocal 

 crosses have apparently been made. 



The significance of the present case is not clear, and it is 

 desired simply to put it on record. Further work is necessary 

 to prove that reciprocal crosses between Reeves and the true 

 pheasants always give different results. 



It is interesting to note that the differences which have been 

 described are rather subtle ones and quantitative rather than 

 qualitative. 



John C. Phillips 



