256  American  Pharmacopoeia.  \^'zull\m%!m' 
1-055  i1  a2b°  between  —  i°  and  -f-  i° ;  soluble  in  2  volumes  70  per 
cent,  alcohol. 
^25° 
25 
Differ- 
ence. 
Limits  of  value 
at  ^° 
15° 
Limits  of  value 
at  ^ 
25° 
American 
Pharma- 
.  250 
copoeia 
25 
Anise  Oil  
0'99i5 
o*9855 
o-oo6o 
0  984 — 0*994 
0*978—0*988 
0  975— o-g8s 
Benzaldehyde  .... 
1 '05^4 
1*0515 
0-0069 
1-050—1*055 
1*043—1  048 
about  1  045 
Bitter  Almond  Oil  .  . 
1*0655 
1-0587 
o*co68 
1*045—1-070 
1*038 — 1-063 
/  045 — /■ 060 
0-9215 
0-9151 
0-0064 
0-919—0*930 
0  9l3—o  924 
0  915— 0-925 
0*9080 
0-9023 
0*0057 
0*905—0*915 
0899 — 0*909 
0-905—0-915 
Cassia  Oil,  rect.   .  .  . 
i'055i 
1-0489 
0-0062 
i"053— 1*065 
1-047—1-059 
1*045— 7*055 
Chenopodium  Oil   .  . 
0-9769 
0-9706 
0-0063 
? 
0-965—0*985 
Cinnamic  aldehyde  . 
1-0560 
1-0504 
0*0056 
1  054—1 -058 
1-048—1-052 
about  /  o^7 
1-0487 
1-0422 
0-0065 
1*040—1*060 
1-033—1-053 
7*0^0 — i'o6o 
Copaiba  Oil  .... 
0-9056 
0-9002 
0-0054 
0*900 — 0  920 
0  895—0-015 
0-895—0-905 
Coriander  Oil  .... 
0-8739 
0-8672 
0-0067 
0*870 — o'SHo 
0  863— 0  873 
0*863—0  878 
Cubeb  Oil  
0-9214 
0-9I59 
0*0055 
0*915—0-930 
0  909 — 0  9  4 
0*905— 0  925 
Erigeron  Oil  
0-8865 
08803 
0*0062 
0*850 — 0*870 
0-844 — 0-864 
0845— 0-865 
0-9294 
0-9227 
0*0067 
0*928 — 0*930 
0  921 — 0-923 
0-925 
Eucalyptus  Oil  .... 
0-9146 
0-9083 
0*0063 
0*910 — 0*930 
0904 — 0-924 
0  905—0  925 
Eugenol  
1-0716 
1-0650 
00066 
1*071—1*074 
1  064 — 1  067 
7*072—1-074 
o*97i5 
09653 
0-0062 
0*965—0*977 
0-959—0-971 
0-953—0-973 
Hedeoma  Oil  (Oil  of 
Amer.  Pennyroyal)  . 
o*933i 
0-9271 
0*0060 
0*925—0*940 
0-919— o'gy4 
0-920—0-935 
Oil  of  Juniper  berries 
0-86:5 
0*8593 
0*0062 
0860— 0*885 
0854—0-879 
o'86o— o*88o 
Lavender  Oil  
0-8864 
0-8797 
0-0067 
0*882—0-895 
0  875—0-888 
0  880 — 0*892 
Lemon  Oil  ... 
0-8585 
0  8527 
0*0058 
0*857—0*861 
0-851—0-855 
0-851—0*855 
Mustard  Oil  
1-0200 
I'0I20 
0*0080 
i'oi6 — 1  025 
1  008 —  1  017 
7  075— 1  020 
Nutmeg  Oil  ..... 
0-9037 
0-8972 
0*0065 
0-870—0*930 
0-864 — 0*924 
0*862—0  970 
Peppermint  Oil      .  . 
0-9060 
0-9006 
0*0054 
0  900 — 0-920 
0-895—0-915 
0894 — 0*914 
I-0440 
1-0372 
o*oo6S 
1*025—1  055 
roi8— 1-048 
7  ojj — 1*048 
Rose  Oil*  
0-8625 
0-854—0-867 
°'n55— 0-865 
Rosemary  Oil  .... 
0-9077 
0901 1 
0  0066 
0*900 — 0*920 
0-893—0-913 
0-894—0*912 
I  '0985 
0*0069 
I  OO/S —~ -I  100 
7 '  705 — 1 ' 1 06 
Sandalwood  Oil   .  .  . 
0-9782 
0*9735 
0*0047 
0-975-0*9^5 
0-970 — 0-980 
0-965—0-975 
I  -0807 
1  0740 
0-0067 
1*070 — 1  082 
1-063—1-075 
7-0(55—1-075 
0-9208 
0-9150 
0*0058 
0*910 — 0930 
0-904 — 0-924 
0-903 — C923 
Spearmint  Oil  ... 
0-9352 
0  9290 
0-0062 
0-920—0-940 
0-914— 0  934 
0*914—0*934 
Sweet  Orange  Oil   .  . 
0-8509 
0-8452 
0*0057 
0-849—0-853 
0  843—0-847 
0*842—0  846 
Thyme  Oil,  white  .  . 
O-9068 
0-9007 
o'oobi 
0-900—0*935 
0-894 — 0-929 
O'QOO — 0*930 
Turpentine  Oil    .  .  . 
0-8682 
0  8616 
0*0066 
0*865—0-875 
0  858—0-868 
O  860 — 0*870 
Turpentine  Oil,  rect.  . 
0-8708 
0-8643 
0*0065 
0*860—0*871 
0-853—0-864 
o'86o— 0*865 
Wintergreen  Oil  : 
a.  from  Betula  lenta 
L  
1-1870 
1-1794 
0*0076 
1  180— 1  188 
1-172-1-180 
1*172— 1180 
b.  from  Gaultheria 
procumbens  L.  • 
1-1864 
1-1788 
0-0076 
r  180— I*  188 
1-172 — I  180 
1-172—1-180 
c.  artificial  
1-1896 
1-1817 
0*0079 
1-185 — I'I9° 
1*177— 1*182 
i- 180— 1-185 
*  The  limits  of  value  given  for  rose  oil  were  based  upon  those  in  force  for — Q. 
Chenopodium  Oil  {Oleum  chenopodii). — Colorless  or  yellow,  d25° 
about  965  to  0*085  ;2  laevorotatory,  am5o  not  above  —  5 °|;3  soluble 
in  5  volumes  70  per  cent,  alcohol. 
^he  upper  limit  of  value  giveu  is  slightly  too  low;  it  should  be  1*059 
(comp.  table). 
2  The  Pharmacopoeia  here  quite  correctly  only  requires  approximate  values, 
as  oil  of  chenopodium  is  extremely  variable  owing  to  its  content  of  a  con- 
stituent which  decomposes  very  readily  ;  this  also  causes  changes  in  the  specific 
gravity. 
3  We  have  observed  with  good  commercial  oils,  rotations  up  to  —  6°. 
