'^"'■Dec"';8^8o^™  }  Gleanings  from  the  Foreign  Journals.  605 
formula  :  Terebinth,  chia  5*0  grams,  vaselin  30*0  grams.  Mix  with 
the  aid  of  a  gentle  heat. — Pharm.  Zeitung^  Oct.  23,  1880. 
On  the  Chlorophyll  of  Plants,  By  F.  Hoppe-Seyler. — From 
chlorophyll  by  means  of  alcohol  two  coloring  matters  may  be  obtained  : 
a  greenish-white  in  transmitted  light  red  coloring  matter,  probably 
identical  with  the  erythrophyll  of  Bougarel,  which  crystallizes  in  need- 
les, and  appears  in  reflected  light  dark-green,  in  transmittent  light 
brown.  The  latter  appears  to  be  closely  related  to  the  chlorophyll  of 
the  living  plant  ;  its  alcoholic  and  etherial  solutions  show  the  red  fluor- 
escence and  a  strong  absorption  between  B  and  C,  as  also  bands  in 
yellow  and  green,  which  are  relatively  somewhat  more  prominent  than 
in  freshly  prepared  chlorophyll  solutions.  The  crystals  are  permanent^ 
and  the  analysis  gave  C  73'4,  H  97,  N  5*62,  O  9*57  and  P  1*37  The 
author  calls  this  coloring  matter  chlorophyllan. 
The  chlorophyllan  gives  on  melting  it  with  potassa  a  liquid  ammo- 
nium base  with  low  atomic  weight,  or  perhaps  ammonia  itself,  also  in 
the  residue,  besides  a  substance  not  yet  more  closely  examined  an  acid 
of  a  purplish-red  color,  soluble  in  ether,  which,  after  drying  with  alco- 
hol and  a  little  sodium  carbonate  solution,  and  extracting  the  residue 
with  alcohol  gives  a  beautiful  purplish-red  strongly  fluorescent  solution^ 
by  the  evaporation  of  which  a  purplish-red  body,  easily  soluble  in  water, 
is  obtained.  This  sodium  salt  was  converted  into  the  barium  salt  and 
the  latter  analyzed  :  (C2iH3303)2Ba.  The  corresponding  acid, 
is  called  by  the  author  dichromatic  acid,  on  account  of  the  double 
fluorescence.  By  the  evaporation  of  the  solution,  as  also  by  the  action 
of  hydrochloric  acid  on  the  sodium  and  barium  salts  of  the  above  acid, 
decomposition  products  were  obtained,  the  nature  of  which  has  not  yet 
been  fully  determined,  although  to  one  of  thtm,  on  account  of  a  simi- 
larity in  optical  behavior  to  the  so-called  hcimatoporphyrin  as  obtained 
from  hamaglobin  or  hamatin  by  the  action  of  strong  acids,  the  name 
of  phylloporphyrin  has  been  given. 
The  author  also  observes  in  regard  to  the  crystallized  chlorophyll  of 
Gautier  that  it  appears  to  him  to  be  a  mixture  of  erythrophyll  and 
chlorophyllan  with  some  wax,  and  rejects  the  claims  of  priority  of 
Gautier  from  the  fact  thai  the  only  notice  of  this  body  in  "  Bull.  Soc. 
Chim  ,"  gives  neither  its  properties  nor  mode  of  preparation. — Schw^ 
Wochenschrijt  far  Pharm.  No.  30,  1 880,  from  Zeitschr.  fur  physiol,  Chem, 
