

14 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 139 



54° 



111 >l II II llll II II II I III I I I Mil I II III I I I II LLIil.l 'I III II I M I 11/ 



52" 



51° 



51° 



52* 



50' 



AT 



4S' 



- 47 9 



I7i 1 1 1 ii 1 1 1 1 1 i'ii m 1 11 1 n 1 11 1 1 1 1 11 1 1 1 1 11 1 1 11 11 1 1 1 1 11 1 1 1 1 1 n 1 m 1 1 1 1 1 rirn rn r n ii | ii\ l 

 56° 55° 54° 53° 52° 51° 



Fig. 1. 



