Mf 
636. Hybridity in Birds. Editorial. Ibid., p. 84.— Comment on the 
case of hybridity between the Snowbird and White-throated Sparrow re- 
ported by Mr. Townsend (Bull. N. O. C., VIII., p. 78; Proc. Acad. 
Nat. Sci., 1883, p. — )., and a case of hybridity reported between the Mallard 
and Pintail Duck. FOr. & Stream, Vol.XXif Uo.TT 
1448. Occurrence of the Swamp and White-throated Sparrows at 
Cambridge , Mass. , in Winter. By Charles R. Lamb. Ibid., p. 32. 
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