TKAVf 



W 



tlic next step would !.,■ to iiiciisisr Ih." wci-ht ofllic liniil liy hi<liiu- a 

 lar^c l)i<Tc ofhoiir to 111., niil ofthc I, all. instead of rarv in- llir w lioi,. 



laboriously out of a lai-vr pi,-,-., of 1 'I'li,- sul.slil ulion ofllir still 



heavicrston.'ibrthclionr woidd obviously su.u-rst ilsrlfncxt. 'I'lic weak 

 I)()iut ill this ai-.uuin.Mil. however, is that I he advanta-e of lli.' Iiaiisition 

 from thclirsttotheiiext form is uot sulli.ienl 1\ <ili\ ious. it se.austonie 

 more natural to supjiose that the hafled stone hammer has Im^cii de 

 Vdoped here, as is believe.l 1,, have been the ,-ase elseNvlN're. by simplv 

 addin- a handle to the pebbh- whirl, had already been us.mI as a hammer 

 without om-. Thes.-l.oueimplemeiitsan.lhen to he <-,,usidered as inakt- 

 sliifts or siil)stitufc.s tbr the stone hammer, when stones suitable Ibr 

 makiu.i;- the latter eould not be proi iired. Now. surh stones are raic at. 



I'oiut I'.arrow. an.l nuist be brou-ht fr a distanee or pun-hased from 



other natives; henee tin- oeeasional use of sueh makeshifts as thes.'. 

 This view will aeeount Ibr the rarity of these bone hannnias. as well as 

 the rudeness of tiieireiaistrnetiolL. No.S'.IS l,", | 10 Pll wouhl t has be merely 

 the result of in.lividual f iney and not a link in tlu' <-haiu of (h'velopment. 



:vi.\i; AND i:ai 



lu-atlv carved from <lriltwood and nearly circular orol.lon.;;- in shape.. 



Fl<i. 33.-Mrat .list. 



The colleetioiieoiitaiiis two specimens of tl 

 Ions ones. All but one of these have be 

 grea.sy. No. T.',r>Hi [o'.'-'J (Fig. .'53) has been selected as the type ot the 



•ircuhir form and three ob- 

 loui;- in use and are very 



A..fC. 



