222 



Professor Williamson on some 



[Feb. 16, 



diffused during the Oolitic period. Similar reproductive organisms, 

 though of very distinct species, have been met with in the Oolites of 



Fig. 1. 



Fig. 2. 



Restored branching peduncle of 

 Williamsonia gigus. 



Fig. 3. 



Vertical section through the sup- 

 posed Androecium of Williamsotiia 

 gigas. 



Fig. 4. 



Restored half-section of the supposed gynoecium of 

 Williainsonia gigas. 



India, Fiance, and some of the Baltic provinces ; and since some of 

 these have been found apart from any associated Cycadean remains, 

 reasonable doubts have arisen as to their Cycadean character. The 



