-*>  Mogôk 
 GENTLEMEN  SORTERS 
 open  hand  on  the  surface:  it  is  slowly  but  irresistibly  
 drawn  down  ;  and  here,  buried  in  the  midst  of  the  
 warm  gravel,  one  feels  as  if  it  lay  upon  the  pulsing  
 heart  of  the  machine. 
 I  have  spoken  of  the  swift  jet  of  water  which  is  
 flung  on  the  contents  of  each  truck  as  it  reaches  the  
 mouth  of  the washing  machine,  and  of  its  object—viz.,  
 the  freeing  of  the  gravel  from  all  mud  and  clay.  The  
 process  is  really  completed  by  a  mechanical  separator  
 before  the  gravel  enters  the  pulsator.  The  separator  
 consists  of three great  revolving pans,  which  circle  round  
 iron  combs  let  in  like  barbicans  into  their  midst.  Water  
 pours in and the pans revolve  from  dawn till dark.  At  the 
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