204: VOLCANIC ROCKS OF SOrTU -EASTERN l^l'EENSLAND. 



Pig. 5. — Oligoclase Basalt, Spicer's Peak, showing a pheno- 

 eryst of olivine altering into serpentine. The 

 other dark patches are mainly chlorite. Sp. 116. 



Fig. 6. — Basalt, 3,000-ft. level, south-east slope of Mount 

 Lindsay, showing the very fine-grained nature, 

 the fluxion structure and the somewhat banded 

 appearance. Sp. 221. 



Anthony Jamks Gumming. Goverument Printer, Brisbane. 



