iORTl;GAS MEDUSAE. 



Plate 30. 



9^ 



•I ■ ! 





102. 



- ..--P- 



d. 



.--' ' \ 



gs. 



\ 



101" 



■'Wmrrr. 



103. 



-y^ 



bMeiseliilluBcsiEi. 



