134  PACTS  CONNECTED  WITH  SUGAR  REFINING. 
sugar  making.  In  1817,  a  dozen  of  these  canes  were  brought 
from  Savannah  to  New  Orleans  by  J.  J.  Coiron,  who  planted 
them  in  his  garden  at  Terre-au-Bceuf.  These  canes  did  so  well 
that,  in  1818,  M.  Coiron  brought  from  Savannah  a  small  ship- 
load of  these  same  canes,  which  were  planted  in  his  property, 
Saint  Sophie,  ten  or  twelve  leagues  below  the  City  of  New  Or- 
leans. This  property  has  since  belonged  to  L.  Millandon  and 
A.  Lesseps.  From  this  place  have  spread  all  the  Javanese 
canes  with  red  and  purple  stripes,  which  are  now  generally  cul- 
tivated in  Louisiana. 
The  cane  with  red  and  purple  stripes,  as  well  as  the  violet 
cane,  which  is  merely  the  first  degenerated,  are  the  two  best 
canes  hitherto  cultivated  in  Louisiana.  They  are  canes  with  a 
hard  bark,  which  will  bear  4°  or  5°  of  frost.  Still  they  are  not 
so  valuable  as  the  Tahiti  variety,  nor  the  Salangor  in  tropical 
regions.  They  give  less  juice  than  the  Malabar,  Bengal,  Tanna, 
Tahiti  and  Salangor;  the  juice  is,  however,  of  very  good  qual- 
ity, although  a  little  dirty,  when  it  has  arrived  at  maturity. 
This  cane  has  made  the  fortune  of  the  Louisianians.  That  and 
its  violet  descendant  will  alone  remain;  none  of  the  other  kinds 
which  I  have  mentioned  will  suit  the  climate  of  Louisiana.  M. 
Coiron  deserves  to  have  a  statue  erected  to  his  honor ;  he  died 
about  25  years  ago,  without  being  aware  of  the  immense  service 
which  he  had  rendered  to  Louisiana. — London  Chemist,  Dec. 
1857,  from  Journal  de  Pharmacie  et  de  Chimie,  Nov.,  1857. 
ON  SOME  FACTS  CONNECTED  WITH  SUGAR  REFINING. 
By  M.  Bobierre. 
In  this  work  I  have  endeavored  to  ascertain  the  causes  of  the 
characteristic  turbidness  observed  in  some  syrups  during  the  re- 
fining process  and  the  origin  of  the  variations  which,  chiefly  in 
summer,  may  be  remarked  in  the  appearance  of  the  loaves  ob- 
tained. 
The  impurity  of  the  blood,  the  blackening  of  the  copper  pipes 
communicating  with  the  filters,  the  perceptible  disengagement 
of  sulphurous  acid  produced  towards  the  end  of  the  operation, 
have  led  me  in  the  first  place,  to  examine  whether  the  presence 
i 
