EXPLANATION OF PLATE L 



Fiof. 1. Stone implement profusely ruddled, and with a large central 

 incised spiral, above it two small discs of concentric circles, 

 the whole enclosed above and below by transverse cross-bar 

 incisions. 



„ 2. The opposite face of the same, with a submedian disc of con- 

 centric circles surmounted by a three-quarter disc of concentric 

 circles fainter than the former. Faint cross-bars are visible 

 below the submedian disc. 



„ 3. " Bull-roarer," Urania Tribe, Linda Creek, W, Queensland. — 

 Five discs, the central ones sej^arated from the others by a 

 cross-bar above and below. 



,, 4. The opposite face of the same. There are no cross-bars here, but 

 beneath the terminal discs are three-quarter circles facing 

 towards one another. 



