284        Pharmaceutical  Notes  from  Purdue  University ^{AmjjJue,ri££arm" 
Menthol  melting  near  92°  F.  the  preparation  is  regarded  as  a 
solution  of  chloral-hydrate  in  liquefied  menthol,  the  mixture  remain- 
ing liquid. 
Chloral-menthol  was  used  by  several  physicians,  with  favorable 
results.  Dr.  L.  Wolff  was  much  pleased  with  its  effects  in  several 
cases  of  facial  neuralgia,  and  regards  it  as  superior  to  menthol  pencils 
and  to  chloral-camphor;  while  it  burns  and  smarts  to  some  extent, 
this  is  considerably  modified  by  the  cooling  action  of  the  menthol. 
Dr.  L.  W.  Steinbach  observed  some  relief  from  its  use  in  a  case  of 
headache  due  to  gastric  disturbance.  Dr.  C.  Seiler  found  it  more 
decisive  than  menthol  cones  in  subduing  the  pain  of  neuralgia  of  the 
temporal  region ;  it  produces  more  smarting,  which,  however,  is  not 
disagreeable.  Dr.  E.  Rosenthal  considered  it  useful  in  every  form 
of  neuralgia;  in  decayed  teeth,  applied  with  absorbent  cotton,  the 
pain  was  allayed  in  from  one  to  five  minutes;  it  was  also  used  with 
benefit  in  migraine,  in  headache  due  to  biliousness,  and  in  headache 
due  to  uterine  disease. 
PHARMACEUTICAL  NOTES. 
(Contributed  by  the  School  of  Pharmacy  of  Purdue  University.) 
(Concluded  from  May  Number.) 
IX.    Liquor  Calcts. — by  m.  jay. 
Ten  samples  of  lime  water,  procured  from  Lafayette  druggists, 
were  examined.  50  c.c.  of  each  were  titrated  with  decinormal  hydro- 
chloric acid,  and  the  following  percentages  of  calcium  hydrate  were 
found : — 
No.  1  0-103  per  cent.  No.  6 
No.  2   0-142     "  No.  7 
No.  3  0-142     '«  No.  8 
No.  4  0-145     "  No.  9 
No.  5  0-150     "  No.  10 
The  mean  value  is  0'149  per  cent. 
X.     OLEATA.  BY  L.  H.  SCHULMEYER. 
Oleate  of  mercury  of  the  Pharmacopoeia  is  a  10  per  cent,  solution 
of  the  yellow  oxide  in  oleic  acid.  Solutions  of  6  to  20  per  cent,  are 
easily  made  by  simply  mixing  the  oxide  and  acid,  and  with  the  aid  of 
a  gentle  heat  combination  will  soon  take  place.    They  will  also  unite 
0-155  per  cent. 
0-160  " 
0-161  " 
0-165  " 
0171  " 
