Quart. Journ. Geol. Soc. Vol. LVII. Pl. XI 



X 18. 



X 33. 



X 16. 



Pyroxene-Andesites and Calcareous Tuffs from the 



TORTWORTH InLIER. 



fs and G. Brebner, pliotomicrogr. 



Benirose, CoUo. 



