PLATE XXXI. 



Fig I 



F,g2 



F:q 7 



iHv ill 



% 



Fig 8 



Fig 3 



Fig 10 



Fig 4 



1 



TRANSPAPffN 

 1-1 I 



Fig 6 



"■•^T'EBTINE 



Fig 5 



Fig 9 



£ Wiisan, Cambridqe 



Opposite p. 118.] 



