538  The  Sundews  and  their  Uses.        { AmNJ0°vu^8arm* 
of  its  weight  of  extract.  I  kilo  of  the  fresh  plant  gives,  with  I  kilo  of 
strong  alcohol,  1,500  grams  of  tincture,  which,  therefore,  contained  in 
1,000  the  extractive  matter  of  666  grams  of  the  drosera.  1  kilo  of 
this  tincture  yields  25  grams  of  extract ;  1  kilo  of  the  fresh  plant  fur- 
nishes 143  grams  of  dried  product,  and  100  grams  of  the  latter  yields 
25  grams  of  extract,  the  same  as  1  kilo  of  the  tincture.  The  dried 
plant,  treated  with  ten  times  its  weight  of  60  per  cent,  alcohol,  yields  a 
tincture  identical  with  the  above,  obtained  from  the  fresh  plant.1 
The  author  reports  also  on  the  physiological  and  therapeutical  proper- 
ties of  drosera,  mainly  from  the  observations  made  by  Mr.  Curie. 
Although  favorable  results  were  observed  in  phthisis  by  the  persistent  use 
of  this  remedy,  it  failed  in  most  cases,  and  appears  to  be  best  adapted  in 
such  which  present  symptoms  of  bronchitis.    The  best  results  were 
1  Tinctures  made  from  fresh  plants  are  called  alcoolatures  in  France.  According 
to  the  French  Codex  they  are  prepared  from  the  bruised  plants  by  maceration  for  ten. 
days  with  an  equal  weight  of  90  per  cent,  alcohol. — Editor. 
