Amsep"^8£!rm'}  Gleanings  from  the  German  Journals,  453 
second  phenol,  both  of  which  could  not  be  determined,  and  probably 
•of     small  percentage  of  cymol. — Archiv  d,  Pharm.,  July,  1879,  p.  I. 
Salicylic  Acid  is  prepared  by  J.  Bang  by  evaporating  phenol  with 
sodium-sulphhydrate  (instead  of  sodium-hydrate),  then  treating  with 
carbonic  acid  as  usually,  transforming  the  separated  crude  salicylic  acid 
with  powdered  marble  and  water  into  the  calcium  salt,  and  purifying. 
— Chem.  CentralbL,  July  9,  1879,  p.  448. 
Salicylic  Acid  Reaction. — A  colorless,  aqueous  solution  of  sali- 
cylic acid,  or  of  sodium  salicylate,  immediately  turns  emerald  green  on 
the  addition  of  a  little  copper  sulphate  ;  this  is  particularly  the  case 
with  sodium  salicylate  dissolved  in  2,000  parts  distilled  water.  The 
addition  of  a  little  alcohol  favors  the  reaction,  but  in  the  presence  of 
free  sulphuric,  or  acetic  acid,  or  of  ammonia,  the  green  color  is  imme- 
diately destroyed  and  the  original  blue  color  of  the  copper  solution 
restored.  Carbolic  acid,  which  ordinarily  is  colored  blue  by  copper 
sulphate,  will  not  interfere  with  the  reaction  between  the  latter  and 
salicylic  acid. — Pharm.  Ztg.,  July  26,  1879. 
The  Cinchona  Alkaloids  are  determined  by  Prunier  by  mixing 
20*0  grams  moderately  fine  powdered  bark,  10*0  slaked  lime  and  30*0 
water,  drying  the  mixture,  powdering  and  extracting  it  by  percolation 
with  a  mixture  of  chloroform  (75*0)  and  absolute  alcohol  (25*0).  The 
percolation  is  finished  with  water,  the  liquid  evapofated  to  dryness,  the 
residue  dissolved  in  sufficient  10  per  cent,  hydrochloric  acid,  the 
filtrate  precipitated  by  ammonia,  the  precipitate  collected  on  a  filter, 
washed  with  a  little  1  per  cent,  ammonia  water,  dried  and  weighed. 
Prom  the  mixed  alkaloids  thus  obtained  the  author  extracts  quinia  by 
pure  ether,  while  Oppermann  dissolves  the  mass  in  tartaric  acid  solution, 
and  adds  sodium  di-carbonate,  which  precipitates  all  alkaloids  except 
the  quinia. — Pharm.  Centralh.,  July  10,  1879,  P-  274« 
Succus  Carnis  or  Meat  Juice,  extensively  used  in  St.  Petersburg 
by  invalids  and  infants  in  the  place  of  raw  meat,  and  said  to  contain 
all  the  constituents  of  the  latter  in  solution,  is  prepared,  according  to 
J.  Martenson,  by  expressing  fresh  beef  by  means  of  hydraulic  presses, 
and  filtering.  It  is  a  clear,  red  liquid,  having  an  acid  reaction,  a  pleas- 
ant taste,  a  specific  gravity  varying  between  1*031  and  1*037,  anc* 
mixes  clear  with  a  little  hydrochloric  acid,  but  is  coagulated  by  a  larger 
proportion  of  the  latter,  and  also  when  boiled.    It  is  not  rendered 
