Trans. N.Z. Inst., Vol. L. 



Plate VI. 



[7'. Fletcher, plwto. 



Fig. 1.— Contact of Amuri limestone with greensand layer containing phosphatic 

 nodules, Port Robinson. A small fault is also apparent. 



[R. Speight, photu. 



Fig. 2. — Nodular layer in Amuri limestone, south side of Amuri Bluff. 

 The parallelism of the layers is very marked. 

 Face p. 82.] 



