529 
afford  an  accurate  comparison  between  successive  months  and  years. 
In  cases  where  men  suffer  from  actual  attacks  of  malaria,  they 
should  be  kept  for  considerable  periods  in  hospital,  and  treated  with 
large  doses  of  quinine  for  a  lengthened  time  so  as  to  kill  all  parasites. 
Of  course,  the  effect  will  not  be  immediate,  as  so  many  men  are 
already  infected,  and  recurrences  will  be  frequent,  but  as  these  die 
out,  and  primary  infections  are  prevented,  there  will  be  a  marked 
diminution  in  the  number  of  inefficients  from  this  cause. 
(d)  Indentured  Coolies 
Here  again  we  have  a  body  of  men  who  are  under  definite 
regulations,  and  under  a  certain  amount  of  control,  and  to  whom  the 
preventive  administration  of  quinine  should  not  present  any  difficulty. 
This  experiment  has  already  been  tried  on  the  recommendation 
of  the  Superintending  Medical  Officer,  but  evidently  it  has  not  been 
given  a  fair  trial  or  carried  out  in  a  systematic  and  thorough  manner. 
I  observe  in  the  report  for  1907,  a  number  of  estates  mentioned, 
with  the  quantities  of  free  quinine  which  were  issued  to  them,  and  I 
have  calculated  the  amount  of  quinine  which  should  have  been  used 
on  one  or  two. 
On  Wentworth  estate,  46  ounces  of  quinine  were  issued.  On  that 
estate  in  1907  the  average  daily  number  of  male  coolies  employed 
was  31,  requiring  a  daily  consumption  of  155  grains  at  five  grains 
per  man,  or  an  annual  consumption  of  a  little  over  129  ounces.  130 
ounces  at  is.  would  cost  £()  los.,  and  even  if  the  malaria  could  only 
be  diminished  by  one-third,  it  would  more  than  repay  the  cost  to  the 
Government. 
At  Trinity,  with  an  average  daily  number  of  14  men,  eight  ounces 
were  used  instead  of  58. 
At  Low  Layton,  with  21  men,  seven  ounces  instead  of  87;  at 
Amity  Hall,  with  an  average  of  44  men,  39  ounces  instead  of  183  ; 
at  Frome,  with  20  men,  two  ounces  instead  of  83. 
I  need  not  labour  this  point,  but  it  is  quite  evident  that  quinine 
could  not  have  been  regularly  given,  and  unless  this  is  done,  it  is  a 
sheer  waste  of  money. 
A  systematic  method  is  here  required  also. 
There  should  be  a  morning  parade  under  the  personal  supervision 
of  a  '  busha  ’  or  book-keeper  ;  a  carefully  kept  quinine  register  ;  and 
