290 On the Distribution of Birds in North Russia. 



O'S 

 Jl IS 



^■^ 







00- 





H ^ rH CO ^ 



eS M 



o J t, fl T3 



'° ^- O m S i< 



02- 



•= O, >> 



»< o g Si 



CS 



o2g|^ 



■g 0) p. bins 2 



ja Q.-5-d S 



