490 
Reduction  of  Tartaric  Acid. 
( Am.  Jour.  Pharm. 
I      Sept  ,  1889. 
Medicament. 
Pereirine  Hydro-chlorate  
Phen-acetin  (para-Acet-phenetidin.  
Picrotoxin  
Piperine  
Podophyllo-toxin  ,  
Potassium  Osmate  
Propylamine,  so-called,    see  Tri-methyl 
amine  
Pyridine    , 
Quinoline  (Chinoline)  Tartrate  
Resorcin  
Salicin  
Salol  
Silver  Cyanide    
"  Iodide  
Solanine  
Sparteine  Sulphate  
Strophanthin  
Sulphonal  
Terpin  Hydrate  
Terpinol  
Thalline  Sulphate  
"  Tartrate  
Tincture  Strophanthus   
Tri-methyl-amine  (erroneously  called  "  Pro 
pyl-amine' ' ) — 10-per- cent.  Solution  
Ure  thane  
Xylene  (Xylol)  
Maximal  Adult  Dose,  by  Mouth. 
Single. 
Grams. 
1-5 
1 
0-006 
0-6 
0-02 
0-015 
2 
3 
2 
2 
0-005 
0-02 
0'1 
003 
00002 
4 
0-3 
0-3 
0-  5 
0'5 
1-  5 
3 
5 
2 
=  about 
Grains. 
15 
9 
i 
30 
45 
30 
30 
60 
1% 
23 
45 
75 
30 
Daily. 
Grams. 
2 
2 
0  02 
1-2 
0-06 
005 
=  about 
Grains. 
30 
30 
1 
18 
1 
twenty  five  Drops. 
6 
90 
10 
150 
10 
150 
10 
150 
0-02 
4 
0-06 
l 
0-5 
n 
o-i 
i* 
0-0004 
r 
8 
120 
1 
15 
1 
15 
1-5 
23 
1-5 
23 
5 
75 
10 
150 
N.  B. — All  the  above-stated  sizes  of  dose  are  calculated  for  admin- 
istration by  mouth  only. 
REDUCTION  OF  TARTARIC  ACID.1 
By  M.  Ballo. 
Neither  Liebig's  nor  Baeyer's  theory  of  the  formation  of  sugar  in 
plants  gives  any  explanation  of  the  part  played  by  the  iron  which  is 
present  in  chlorophyll.  In  investigating  the  action  of  this  metal  on 
vegetable  acids,  the  author  found  that  tartaric  acid,  when  warmed 
with  ferrous  sulphate,  is  converted  into  an  acid  which  he  names 
isoarabinic  acid,  on  account  of  the  sticky  nature  of  solutions  of 
the  calcium  salt.  Tartaric  acid  (1  part)  and  ferrous  sulphate  (1  part) 
are  dissolved  in  water  (about  2  parts)  and  the  solution  warmed  on  the 
1Ber.  xxii,  750—754  ;  reprinted  from  Jour.  Chem.  Soc,  July  1889,  p.  693. 
