AmATe[moavm'}  Gleanings  from  the  German  Journals.  291 
The  difference  between  the  percentage  figures  in  the  two  columns 
are  probably  the  consequence  of  an  unintentionally  inaccurate 
description,  I  think  Nos.  1,  2  and  3  are  erroneously  reckoned  by 
volume. 
How  misleading  those  statements  are  may  be  seen  from  a  specific 
gravity  determination.  Cod  liver  oil  is  usually  0-923  ;  malt  extract 
is  more  variable,  1  36  is  found  to  be  an  average. 
My  own  emulsion  of  malt  extract  with  cod  liver  oil  (No.  4)  had  the 
specific  gravity  1-27,  and  the  malt  extract  used  was  1-35.  The  oil 
contained  ±  1  per  cent,  free  fatty  acids,  and  the  malt  extract  had  a 
converting  power  for  starch  (potato  starch)  of  1 :  10,  items  which  I 
recommend  for  consideration  when  there  is  question  of  malt  ex- 
tract with  cod  liver  oil  as  a  food. 
Laboratory  of  Parke,  Davis  &  Co., 
Detroit,  May  14,  1890. 
GLEANINGS  FROM  THE  GERMAN  JOURNALS. 
By  Frank  X.  Moerk,  Ph.G. 
Cold  Cream  is  recommended  by  Maercker  to  be  made  from 
arachis  oil  instead  of  almond  oil.  4  parts  white  wax,  5  parts 
cetaceum  and  28  parts  arachis  oil  are  melted  on  a  water  bath,  and 
to  the  partially  cooled  mixture  are  added  4  parts  more  of  arachis 
oil  with  constant  stirring,  finally  incorporating  16  parts  rose  water, 
in  which  ^  part  borax  is  dissolved.  To  every  50  grams  of  the 
cold  ointment  one  drop  oil  of  rose  is  added. — Pliarm.  Ztg.,  1890, 
121. 
Creasote-glj/cerin.^-Ten  parts  creasote,  20  parts  alcohol,  10  parts 
magnesium  carbonate,  40  parts  glycerin  and  40  parts  water  are 
rubbed  together,  the  mixture  agitated  repeatedly  during  several 
days  and  filtered.  From  this  preparation  Vinum  Creasoti  is  made 
by  mixing  creasote-glycerin  30,  water  30,  syrup  20.  and  white  wine 
40  ;  Syrupus  Creasoti  by  taking  creasote-glycerin  20  and  syrup  140  ; 
and  Aqua  Creasoti  by  mixing  creasote-glycerin  10  and  distilled 
water  300. — Bretter  (Hygea),  Oesterr.  Ztschr.  f.  Pharm.y  1890,  [38. 
Test  paper  for  the  detection  of  chlorides. — A  solution  of  potassium 
chromate  is  precipitated  by  silver  nitrate  and  the  silver  chromate 
redissolved  by  adding  a  few  drops  of  ammonia.  Bibulous  paper  is 
saturated  with  this  solution  and,  while  still  moist,  drawn  through  a 
very  dilute  nitric  acid  ;  the  dilute  acid  causes  the  precipitation  of 
