THE ACTIVE VOLCANOES OF NEW ZEALAND 



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and beds of tuff and agglomerate, with bowlders up to ten feet in 

 diameter. Some interesting examples of flows which appear to 

 have split, passing above and below beds of agglomerate and tuff, 



Fig. 5. — Ngauruhoe from a point near the foot of Ruapehu. This view shows 

 how the cone is built on an upland largely developed by Tongariro. 



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Fig. 6. — Ngauruhoe (7,515 feet) showing the usual cloud of steam and sulphur 

 fumes rising from the crater. 



