494 
Analysis  of  Lemon  Syrups. 
J  Am.  Jour.  Pharm. 
I    October  1898. 
Number. 
Specific  Gravity 
at  150  C. 
Grammes  of  sol- 
id Eucalyptol 
Phosphate. 
Per  cent,  of  Eu- 
calyptol, by 
Difference. 
Percent,  of  Eu- 
calyptol, Di- 
rect. 
0  9350 
14-78 
103*75 
62*14 
o-9i53 
10*70 
73*62 
31-20 
3  
0*9116 
8-io 
5475 
23*17 
4  .....  • 
0*8912 
7'i3 
43*62 
24*29 
5  
0-8955 
3'5o 
23*37 
— 
6  
0*8876 
Did  not  congeal 
7  
C9081 
Did  not  congeal 
8  
0*9424 
9*9 
73'84 
49 '23 
No.  one  was  pure  eucalyptol.  Nos.  two  and  eight  were  marked 
fancy  oils,  and  commanded  a  high  price.  The  remaining  oils  are 
such  as  are  commonly  met  with  in  the  wholesale  trade. 
The  solid  eucalyptol  phosphate  was  obtained  from  8  grammes  of 
substance.  The  per  cent,  of  eucalyptol  by  difference  was  obtained 
by  the  above  process.  The  per  cent,  of  eucalyptol,  direct,  was  ob- 
tained by  Mr.  Scammell's  process. 
The  above  method  does  not  give  absolute  results,  as  can  readily 
be  seen  from  the  amount  of  eucalyptol,  in  pure  eucalyptol,  but  the 
results  are  close  approximations.  The  method  will  undoubtedly  be 
of  service,  being  short  and  easily  executed. 
35  Poplar  Street,  Philadelphia. 
1/ 
ANALYSIS  OF  LEMON  SYRUPS.1 
By  A.  Borntr^ger. 
For  the  detection  of  sulphuric,  hydrochloric  and  boric  acids  a 
solution  of  the  sample  was  evaporated  with  soda,  and  the  residue 
charred.  One  portion  of  the  aqueous  extract  of  the  residue  was 
then  acidified  with  hydrochloric  acid,  and  a  second  portion  with 
nitric  acid,  and  the  two  portions  tested  respectively  with  barium 
1  Zeitschr.f.  Unlersuch.  der  Nahr.  u.  Genussmittel,  1S98,  p.  225  ;  abstract  in 
The  Analyst,  1898,  p.  176. 
