469 



PAGE 



WEBSKY, serpentine 108 



WEIGAND, serpentine 110 



WERVEKE, foyaite 359 



- hour-glass structure ... 33 



- secondary twinning in 



felspar 151 



Whin Sill 147,187,207 



White trap ... 210 



WICHMANN, fulgurite 13 



WILLIAMS, Gr. H., enstatite-syenite 293 



peridotite 82 



gabbro 161 



zones round olivine 165 

 WILSON, analyses by ... 223, 275, 335 



WOLFF, theralite 360 



Wollastonite 384 



WORTH, contact-metamorphism ... 888 



- rocks of Plymouth 229 



Z 



PAGE 



Zeolites, formation of 413 



Zircon 168,268,304 



Zircon-syenite 358 



ZIRKEL, Arrau pitchstones 344 



basalt 



corsite , 



diabase 



diorite 



eucrite 



gabbro 



granites of Scotland 



inclusions 



quartz-diorite 



136, 1Q8, 195 



134 



134 



133 



134 



... 132, 171 

 .. 326 

 18, 141 

 263 



Zoisite 228 



Zoisite in saussurite 149, 154 



Zonal structure of crystals ... 21,31 

 Zones round olivine 165, 176 



Kf tin-use ( Sims. Print'.rn, 23, Old Railey, London; find Derby. 



