388     Emulsion  of  Codlker  Oil  with  Calcium  Phosphate.  {Xgn^MssT' 
ASTRINGENT  DRUGS. 
By  Chas.  F.  Kramer,  Fh.Q. 
From  an  Inaugural  Essay. 
For  deterniiDing  the  amount  of  tannin,  aluminated  gelatin  solution 
was  employed ;  since^  however,  Miiller's  solution  ("Amer.  Joiu\  Phar.,"' 
1859,  p.  427  ;  1861,  p.  164)  proved  to  be  too  thick  for  convenient 
use,  a  solution  of  about  one-third  the  strength  proposed  by  him  was 
used  and  standardized  with  tannin. 
The  author  does  not  state  the  strength  of  the  infusions  or  decoctions- 
used,  or  whether  the  results  were  verified  by  check  experiments. 
Most  of  the  figures  agree  well  with  the  results  obtained  by  H.  K. 
Bowman  ("Am.  Jour.  Phar./'  1869,  p.  193).  The  percentage  of  tan- 
nin thus  determined  was  as  follows  : 
Brayera, 
.  24-4i) 
Hsematoxylon, 
.  3-50^ 
Caryoph}?llus, 
13-():» 
Heucbera, 
20- 00' 
Catechu , 
.  40-;:!3 
Humulus,  . 
.  4-00 
Chiniaphila, 
4-Oi) 
Krameria, 
22-00 
CinDainonuini, 
.  9-36 
Pimenta,  . 
.  1-69 
Corniis  florida, 
3-00 
Prunus  Virginiana, 
3-42 
Galla, 
.  66-88 
Quercus  alba, 
.  8-34 
Geranium, 
17-33 
Rubus, 
10-20 
Cleum, 
.    3 -GO 
Sassafras,  . 
.  6-00' 
Clranati  Fructus  Cortex,  , 
28 -CO 
Tormentilla, 
17-00 
Granati  Radieis 
Cortex, 
.  22-00 
Valeriana, 
.  1-54 
EMULSION  OF  CODLIVER  OIL  WITH  PHOSPHATE  OF 
CALCIUM. 
P>Y  Evan  B.  Merriam,  Ph.G. 
From  an  Inaugural  Essay. 
jNIade  by  the  following  process,  this  preparation  will  retain  the 
insoluble  calcium  phosphate  in  suspension  for  a  long  time: 
Take  of  well-washed  phosphate  of  calcium,  dry  and  in  fine 
powder,      .....  grs.  clx 
Pure  muriatic  acid,  a  sutRcient  quantity,  about       .  f 
Water  of  ammonia,  a  sufficient  quantity,  about  f.:5iiss 
Best  codliver  oil,  .....  f^viii 
Pure  glycerin,  .  .  .  .  f^i 
Gum  arable,  in  powder,    .  .  .  . 
Oil  of  nutmeg,  .  .  .         '  .  filv 
Oil  of  lemon,       ....  .  iHx 
Oil  of  gaultheria,       .  .  .  .  lUv 
Water,  sufficient  to  make  .  .  .  f^xvi 
