378 GREAT SERPENTINE BELT OF NEW SOUTH WALES, vii., 



that in which it is incipient to that of perfect confluence, are to be 

 found. In some eases, on the other hand, the septa of one eoralUte 

 do not extend to those of another, and leave an intervening space 



Text-fig. 5. 

 Transverse section of Sponyophylhim sp.nov., ( x 4), Loomberah Limestone. 



to tlie sole occupation of the dissepiments. AstrcTiform colonies 

 make their appearance in widely divergent stocks, and at different 

 periods of time; being, it w^ould seem, the ultimate terms in a pro- 

 gressive development along a w^ell-defined line."] 



