AmAprn?i889arm'}     Synthetical  Processes  in  Animal  Organism.  197 
statement  of  the  amount  of  beef  fat  or  stearin  can  be  given  in  lard 
containing  cotton-seed  oil.  The  following  table  gives  the  maximum 
and  minimum  absorptions  of  iodine  in  the  common  oils  I  have  found  : 
Name  of  Oil  or  Fat. 
Cotton-seed  Oil  
Linseed  "   
Kape  Oil  (Stettin)  
Castor  Oil  
Palm  "   
Olive  "   
Neatsfoot  Oil  
Cocoanut  "   
Lard  
Beef  Fat  
Mutton  Fat  
Bone  "   
Tallow  
— The  Laboratory,  lottington  Mill,  near  Bury. 
Maximum 
Minimum 
Absorption . 
Absorption. 
Per  cent. 
Per  cent. 
no-ii 
106-0 
149'10 
148'07 
10276 
100-43 
. .      oo  ^tv 
..  52-40 
51-01 
84-00 
78-50 
..  70-70 
70-00 
9'35 
8-97 
..  60-00 
57-10 
..  44-00 
43*26 
.  46-19 
45-18 
..  49-58 
46-27 
41-98 
40-01 
SYNTHETICAL  PROCESSES  IN  THE  ANIMAL  OR- 
GANISM.1 
By  E.  Pflttger. 
A  living  liver  free  from  glycogen  will  again  form  that  substance, 
not  only  from  carbohydrates,  but  from  glycerol,  gelatin,  or  proteid. 
v.  Mering  fed  dogs  on  phloridzin,  whereby  they  became  diabetic,  and 
in  a  few  days  all  carbohydrate  material  in  the  -  body  had  been  dis- 
charged in  the  urine  as  sugar.  If  now  the  same  drug  was  given  to 
the  same  animals  after  a  few  days'  interval,  during  which  they  had  no 
food,  they  once  more  became  intensely  diabetic,  and  the  quantity  of 
sugar  passed  was  so  enormous  that  it  cannot  be  supposed  to  have  come 
from  the  drug  itself  (  Verhandl.  des  VI.  Congr.  inner.  Med.  Wiesbaden, 
1887).  One  explanation  of  the  way  in  which  glycogen  is  formed 
after  the  administration  of  glycerol,  is  the  well-known  "  economy  the- 
ory ; "  another  is  that  glycerol  and  like  substances  act  as  stimuli  to 
liver  activity.  It  certainly  cannot  be  supposed  that  glycogen  is  directly 
formed  from  the  substance  administered — or  at  least  not  in  all  cases ; 
for  instance,  from  ammonium  carbonate.  The  question  then  arises  as 
to  the  genetic  relationship  existing  between  glycogen  and  albumin. 
1  Pflugers  Archiv,  xlii.  144-154  ;  abstract  from  the  Jour.  Chem.  Soc,  1889,  p.  174. 
