
 
        
         
		appropriated  it  to  his  own  use,  declaring  that  he  
 intended to ride it for the remainder of the day. 
 He rode it for an hour or two, and  enjoyed  himself  
 immensely.  But at the  end of  that time,  as he  
 was becoming rather liberal in the application of his  
 stick,  the  donkey rebelled.  He  suddenly kicked up  
 his heels, flung  his  rider off,  and scampered braying  
 back again towards the spot from which he had been  
 taken. 
 El  Ayed  picked  himself  up  and  started  in  
 pursuit.  But  though  he  ran  his  best  he  was  no  
 match  for  that donkey in pace.  In about a quarter  
 of  an  hour  he  returned,  breathless,  crestfallen,  and  
 extremely  angry  with  the  other  two  Arabs  for  
 laughing at him. 
 Three  small  boys,  belonging  apparently  to  a  
 douar,  or  circle  of  tents,  which  we  could  see  in  
 the  distance,  passed  by  shortly  afterwards,  and  
 made  some  slighting  remarks  about  us  as  they  
 did so. 
 El Ayed  turned  back at once, and  obtained considerable  
 relief  from  his  ill-humour  by  converting  
 them  into  a  scapegoat—or,  rather,  scape-donkey—  
 and chastising them. 
 With the fiery courage of the desert Arabs,  these  
 small brats, the eldest  of  whom could not have been  
 more  than  ten  years  old,  instead  of  submitting  
 calmly to  their  punishment,  flew  at  El  Ayed  like  
 little  wild  cats,  scratching,  biting,  kicking,  and  
 hitting  out  with  their  puny  fists,  and  doing  their  
 very best to pull  him down.  He  took  this  demonstration  
 very  calmly,  and,  regardless  of  their 
 struggles, systematically cuffed each one  of  them in  
 turn. As he left  them to return to us, the last one who  
 had suffered  at  his  hands  scrambled,  squealing with  
 rage, to his feet from the  ground where he had been  
 rolled,  and looked round  for something to fling after  
 his chastiser.  But  as he could  find nothing, with a  
 final  scream  of  impotent  fury  he  snatched  up  a  
 handful of sand and threw it at him. 
 In spite of  the diminutive size of  his victims, El  
 Ayed by no means got off scot-free.  His gandourah  
 was torn, his lip was slightly cut,  and for some time  
 afterwards he continued to rub  a place where he had  
 been bitten in the calf of his leg. 
 We  found  the  caravanserais  between  Tougourt  
 and El Wad  larger and more commodious  than any  
 which wre had seen before. 
 The greatest difficulty is experienced  in  erecting  
 any building  on the unstable  foundation  offered  by  
 the  shifting  sands  of  these  dunes.  Even  when  a  
 house  has  been  completed, the  fabric is  a source of  
 continual anxiety.  Either the sand  falls away from  
 under the walls  and  causes  them to collapse, or else  
 it drifts up against them and  threatens to overwhelm  
 the entire  structure.  Against  the  sides  of  quite  a  
 new caravanserai  in which we  stayed  the  sand  had  
 drifted  until  it  reached  almost  to  the  base  of  the  
 barrel-shaped roof. 
 The borj at which we  slept  on  the  night  before  
 our arrival at El Wad  had  been  built  since  any of  
 my Arabs had  passed  along  the  road,  so  we  could  
 only  estimate  its  position  from  the  information