Thil. Trans . MD C C CLXyiH . Plate XI . 
Tig. 34- . 
Fig. 35. 
Fig. 
Tig. SZ . 
J ' K 
J~-Z.Cla.rlte. ad. not. del. 1S&7 
Tig. //! . 
X 
J. B as ire 
