24 



not often pointed, but mostly rounded off at one end at 

 least. So far, no complete specimen has come under my 

 notice, they all appear to have been broken. 



FIG. 24. 

 F2/h. TWO-RIDGED KNIFE. Melton Mowbray. 

 G. CONCAVE SCRAPERS. 



This is a cimous group, which is distinguished by one 

 or two more or less concave edges. If there are two con- 

 cave edges, they axe separated by a tongue-shaped pro- 

 tuberance, which shows always a median longitudinal 

 ridge, and is usually, but not alwaj s, rounded off at the 

 end. It is difficult to say whether the concave edges are 

 intentional or the result of utilisation. In most cases^ 

 when there is only one concave edge, it is very probable 

 that the curved outline is the result of wear and teai", by 

 continuous scraping off a rounded objecu (spear), iu 

 others, it seems equally certain that the concave edges are 

 trimmed and, therefore, intentional. Among tJie large 

 number I select only a few specimens. 



The specimen shown in the next figvire is in some 

 ways rather a remarkable one ; it is distinctly a one-edged 

 concave scraper, but it is also certain that the other side 

 has been consideraoly used, and as the concave edge was 

 apparently bevelled previous to use, a sort of 

 longitudinal ridge is produced, which gives it the tongu»- 

 shaped appearance of the double scrapers. 



FIG. 25. 



Ga/b. ONE-EDGED CONCAVE SCRAPER. Maryvale 



(Tea Tree). Found by Mrs. Percy Butler. 



The next specimen is a typical double-edged concave 

 scraper, of the type which have been termsd "duck bills." 

 The tongue-shaped "bill" is in this specimen rather long, 

 while in fig. 27 it is very short, though rounded, and m 

 fi.g. 28, short but pointed- 



FIG. 26. 

 Gb. DOUBLE-EDGED CONCAVE SCRAPEli (DUCiv- 

 BILL). Old Beach. 



FIG. 27. 

 Gb. DOUBLE-EDGED CONCAVE SCRAPER (DUCK- 

 BILL, SHORT-TONGUED). Maryvale (Tea Tree). 



