460 



A. F. BUDDINGTON 



Fig. S- — Medium spherulitic banded rhyolite; about five and one-half miles 

 south of Manuels, Conception Bay. Photograph by G. v. I. 







\^.^ 



Fig. 6.^Microphotograph of eutaxitic structure in rhyolite. Hill 467, south 

 of.Avondale, Conception Bay. Natural light, X32 diameters. 



