Quart. Journ. Geol. Soc. Vol. LXX, Pl.XXXVIII. 



1. *.30 



2. x 30 



3. x 30 



Ira*. 



W. R.W., PhotOm icro. Bemrose. CoMa, Derby 



OLIVINE-GABBRO; CONTACT- ROCK ; and CORDIER ITE- NORITE 



