a 







t 



L 



ro 



;S^ 









I 



tX 



u 







Summer 



'^'S^^ 



FIG. IV. — The Micratiox of the Grey Gurxakd. 



0^ Recruiting ground of school, and I. -IV. the iDosItious 

 of the migrants as a result of the annual summer 

 denatant and winter contranatant migrations. 



