
 
		Megna.  Eice  is  cultivated along  the mud  flats left by  
 the  annual  floods,  and  the  banks  are  lower  and  less  
 defined  than  those  of  the  Soormah,  and  support  no  
 long  grasses  or  bushes.  Enormous  islets  of  living  
 water-grasses  and  other  plants  floated  past,  and  birds  
 became more numerous,  especially martins  and  egrets.  
 The  sun was  hot,  but  the weather  otherwise  cool  abd  
 pleasant;  the  mean  temperature  was  nearly  that  of  
 Calcutta,  69f°, but the  atmosphere was more humid. 
 On  the  following  day  we  passed  the  Dacca  river;  
 below which  the vegetation of  the  Sunderbunds  commences  
 :  there is  a narrow beach,  and behind it a mud  
 bank  several  feet  high,  supporting  a  luxuriant green  
 jungle  of  palms,  immense  fig-trees,  and  tall  betel-  
 palms. 
 Towards  the  embouchure,  the  banks rise,  the  river  
 expands into  a muddy sea,  and  a long swell rolls in, to  
 the  disquiet of our fresh-water  boatmen,  Low islands  
 of  sand  and  mud  stretch  along  the  horizon;  which,  
 together  with  the  ships,  distorted  by  extraordinary  
 refraction,  flickered  as  if  seen  through  smoke.  We  
 landed in  a canal-like creek on the  17th,  and walked to  
 Noacolly,*  over  a  flat  of hard mud,  covered with turf,  
 Noacolly  is  a  station  for  collecting  the  revenue  and  
 preventing the  manufacture  of  salt, which,  and opium,  
 are  the  only monopolies  now in the hands  of  the  East  
 India  Company.  The  salt  itself  is  imported  from  
 Arracan,  Ceylon,  and  even  Europe,  and  is  stored  in  
 great  wooden  buildings  here  and  elsewhere.  The.  
 ground being impregnated with salt, the illicit manufac* 
   “ Colly ”  signifies a muddy creek,  such as intersect the  delta. 
 ture by evaporation is not easily  checked;  but whereas  
 the average number of  cases brought to justice  used to  
 be twenty or  thirty in  a week,  they  are  now reduced to  
 two  or three.  I t   is  remarkable  that  though  the  soil  
 yields  such an  abundance  of  this mineral, the water of  
 the Megna at Noacolly is  only brackish, and it is therefore  
 to  repeated * inundations  and  surface  evaporations  
 that the  salt is  due.  Fresh water  is everywhere found  
 at the  depth of a very few feet, but it is not good. 
 The  total  breadth  of  the  delta  is  260  miles, from  
 Chittagong to the mouth of  the Hoogly,  and is  divided  
 longitudinally by the Megna :  all  to  the  west  of  that  
 river presents  a luxuriant vegetation, while to  the  east  
 is  a bare, muddy expanse, with no  trees  or shrubs but  
 such  as  are planted.  On the west coast  the  tide  rises  
 twelve  or  thirteen  feet;  on  the  east  from  forty  to  
 eighty.  On  the  west  the  water  is  salt  enough  for  
 mangroves to  grow for fifty miles  up  the  Hoogly;  on  
 the  east the  sea-coast is too fresh for that  plant for ten  
 miles  south  of  Chittagong.  On  the west,  50  inches  
 is the Cuttack annual  rain-fall;  on the  east,  90  to  120  
 at Noacolly  and Chittagong,  and 200  at Arracan,  The  
 east coast is  annually visited by earthquakes, which are  
 rare  on the west;  and, lastly,  the majority of  the trees  
 and shrubs  carried down from the  Cuttack and  Orissa  
 forests, and deposited on the west coast of the  delta, are  
 not  only  different in  species,  but  in  Natural  Orders,  
 from  those  that  the  Fenny  and  Chittagong  rivers  
 bring down from the jungles. 
 At Noacolly we were  glad  to  find  that  our observations  
 on  the  progression  westwards  of  the  Burram