Victorian Ljiieous Rocks. 275 



Total - 100.0 1.539 100.0 1.541 100.0 1.543 100.0 1.542 100.0 1.545 



Naturally the most interesting compositions are those of the 

 limiting members of the series. Taking the acid limit first, we 

 find that such a composition would give practically pure quartz and 

 felspar, as may be seen from the following : — 



