PLATE 7 



EXPLANATION OF FIGURES 



62 to 65 A series of four sections from specimen No. 290; all X 46. 



62 Taken through plane a to b, figure 2. 



63 Taken through plane c to d, figure 2. 



64 Taken through plane e to /, figure 2. 



65 Taken through plane g to h, figure 2. 



674 



