68 



M. Karsten's Observations and Experiments on 



2 w 



tn O 



W }«; 



SI 



< o 



^"5 



■s.s;g 



^ ^ C M 



MM 



r^ o o 

 I— < cs ^ 

 ©I «N CO 



iO 50 (M 



»o SO o 



CO ^ 



05 i-t 



o t^ 



-II 



ifi 



CO CO 



O 00 





2 S 



CO 



o 



O CO 



© ® 



CO eo 



CO i;d 



(N o 



'^ TO 



■^ P-i CO 

 C5 CO «0 



<n C5 i-^ 



(D ^ O ^H 



? 2i o 2i |l 



o o o 



CO 



05 



