166  ON  CAMPHOR  WATER. 
remain.  Of  the  splendid  grove  of  mahogany-trees,  some  of 
which  were  planted  in  1796,  thirty-one  specimens  are  blown 
down.  The  iron- wood  avenue,  planted  by  Dr.  Wallich,  has 
suffered  severely.  The  water,  breaking  through  the  river  em- 
bankment, and  flooding  the  grounds,  helped  to  complete  the 
ruin.  The  scene  presented  the  morning  after  the  cyclone  out- 
does description.  More  than  oiie  thousand  trees,  and  innumer- 
able shrubs,  lay  prostrate.  Nothing  had  been  spared.  Trees 
that  had  not  fallen  were  mot e  or  less  stripped  of  their  branches. 
Not  a  vestige  of  a  leaf,  flower,  or  fruit  remained ;  the  lawn, 
roads  and  tanks  were  blocked  up  by  trees  and  fallen  branches, 
and  hundreds  of  cart-loads  of  straw  had  been  carried  by  the 
water  into  the  grounds.  More  than  seventy  years  will  be  re- 
quired to  restore  the  garden  to  the  splendor  in  which  it  was 
on  the  night  previous  to  the  cyclone.  The  most  singular  part 
about  this  devastation  is.  that  of  the  two  great  classes  of  plants 
into  which  the  vegetable  kingdom  is  divided,  the  endogens 
suffered  the  least  injury.  This  produced  a  striking  effect  on 
the  scenery.  All  the  exogens  being  laid  low,  the  country 
about  Calcutta  appeared  to  be  covered  with  only  four  kinds  of 
trees,  the  bamboo  the  cocoa-nut,  the  wild  date,  and  the  Pal- 
myra.— London  Pharm.  Jour.,  Jan.  1st,  1866,  from  Athenceum. 
ON  CAMPHOR  WATER. 
By  G.  F.  H.  Markoe. 
"  Which  process  for  Camphor  Water  is  to  be  preferred,  that  of  the 
U.  S.  Pharmacopoeia  or  of  the  British  Pharmacopoeia  ?" 
The  United  States  Pharmacopoeia  directs  Camphor  Water  to 
be  made  thus  : 
Rub*  120  grains  of  Camphor  with  40  minims  of  Alcohol, 
then  with  240  grains  of  Carbonate  of  Magnesia,  then  with  two 
pints  of  water  gradually  added,  and  lastly  filter  through  paper. 
Two  pints  of  Camphor  Water  were  carefully  prepared  in 
strict  accordance  with  the  above  formula,  and  the  magma  of 
carbonate  of  magnesia  and  camphor  remaining  on  the  filter  was 
transferred  to  a  small  beaker  and  treated  with  dilute  sulphuric 
acid  in  very  slight  excess,  by  which  means  the  magnesia  was 
