AmAP°rnr;i903arm'}       Some  Notes  on  Essential  Oils.  165 
the  Bulgarian  rose-distillers  have,  so  far  at  least,  been  but  partially 
successful.  There  appears  to  be  a  considerable  difference  of  opin- 
ion on  the  success  or  failure  ot  a  recent  attempt  to  concentrate  the 
manufacture  of  the  oil  in  central  factories,  or  large  distilleries. 
There  can  be  no  doubt,  however,  that  with  improved  appliances  and 
greater  care  a  much  more  economical  and  better  paying  process 
might  be  devised. 
Artificial  oil  of  rose  has  been  an  article  of  commerce  for  some 
time,  and  has  met  with  considerable  success.  There  are  several 
manufacturers  who  are  putting  out  an  artificial  oil,  with  or  without 
an  additional  trade  name.  The  composition  of  these  mixtures 
differs  very  materially,  the  majority  of  them  resembling  oil  of  rose 
only  in  the  odor  and  not  in  any  of  its  other  physical  properties, 
though  at  least  one  concern  is  putting  out  an  oil  of  rose  having  a 
stearoptene;  but  this  firm  does  not  recommend  its  use.  It  is  said 
that  in  the  manufacture  of  perfumes  these  artificial  oils  or  mixtures 
are  particularly  applicable  on  account  of  the  constant  composition 
and  ready  solubility  in  alcohol. 
Oil  of  Rosemary. — There  are  two  commercial  varieties  of  this 
oil:  the  so-called  French,  which  is  usually  considered  the  finest  and 
brings  the  highest  price,  and  the  Italian  or  Dalmatian  ;  this  is  pro- 
duced on  several  islands  off  the  coast  of  Datmatia.  The  product 
from  these  islands  usually  comes  into  the  market  through  the  Aus- 
trian port,  Trieste,  and  in  this  country  this  oil  is  usually  designated 
as  oil  of  rosemary,  Trieste. 
Schimmel  &  Co.  have  obtained  as  high  as  2  per  cent,  of  oil  from 
rosemary  leaves.  According  to  the  same  authority,  oil  of  rosemary 
varies  in  specific  gravity  from  0-900  to  0  920. 
Oil  of  Sandalwood. — The  East  Indian  oil  has  materially  in- 
creased in  price  on  account  of  a  report  from  Mysore  that  a  disease 
had  broken  out  among  the  sandalwood  trees,  which  was  rapidly 
spreading  and  had  already  killed  off  a  number  of  trees. 
According  to  a  letter  published  by  Schimmel  &  Co.,  the  disease 
first  made  its  appearance  a  little  more  than  two  years  ago  in  Coorg, 
an  adjoining  province.  So  far  no  satisfactory  means  of  preventing 
the  spread  of  the  disease  have  been  devised,  and  if  further  informa- 
tion should  confirm  these  statements,  the  price  of  sandalwood  oil 
would  probably  reach  a  much  higher  figure  in  the  near  future. 
Oil  of  Wintergreen. — This  oil  presents  rather  a  complicated 
