402 
Gleanings  from  the  German  Journals. 
/Am.  Jour,  Pharm. 
\       Aug.,  1888. 
mers  of  CioHjg  mixed  with  resinous  bodies.  A  sulphurated  com- 
pound is  present  in  the  oil,  which,  however,  decomposes  on  warming 
Avith  a  solution  of  R^^.—  Chem.  Ztg.  Rpt,  1888,  101. 
A  heJctograph  mass  which  prevents  aniline  inks  from  penetrating 
into  the  interior  and  which  allows  the  ink  to  be  removed  simply  by 
washing  is  made  as  follows :  Isinglass  100,  glycerin  600  and  water 
400.— Fharm.  CentrlL,  1888,  228. 
Detection  of  Ceresin  in  Wax. — 0*2  gm.  of  the  sample  is  liquefied  in  a 
test  tube  and  dissolved  by  gentle  agitation  in  5  gm.  chloroform,  corked 
and  set  aside  until  a  temperature  of  16°-18°  C.  is  attained.  Should 
ceresin  be  present  a  turbid,  whitish  layer  is  produced,  varying  in 
depth  according  to  amount  of  adulteration. — H.  Hager,  Pharm. 
Centrlh.,  1888,  242. 
Extracts  of  Aconite. — A  summary  of  alkaloidal  determinations  of 
aconite  extracts  made  according  to  the  various  pharmacopoeias  by 
Richard  Kordes  concludes  his  contributions  in  the  Pharm.  Ztschr.  f 
Pussl.y  1888,  p.  340.  The  extracts  were  made  from  the  same  lot  of 
drug,  the  determination  by  volumetric  estimation  with  Mayer's  reagent. 
The  menstrua  were  examined  and  if  they  precipitated  the  test  solu- 
tion, the  amount  of  this  was  deducted  from  total  precipitation. 
LEAVES. 
Authority. 
T.I!?^l2L  Solid  mat- 
Percentage  of  alkaloid  calculated  for 
Percent- 
age of  ex- 
tracted 
alkaloid. 
drug. 
ter  in  Extr 
Normal 
Extract. 
Dry  Extr. 
Drug. 
0-3832 
0-22220 
9-19015 
0-37430 
0-37170 
0-37870 
100-0 
58-0 
49-6 
97-  6 
96-9 
98-  8 
Ext.  Gall,  (aquos.). 
"    Ross.  (aq.  sp.)- 
"    Fennic  (spr.) . 
"   Helv.      "  . 
"    Internat.  "  . 
"   Rossic.  (sice.).. 
"    Fennic.   "  .. 
45-3% 
9-6 
18-  2 
20-0 
26-0 
19-  2 
54-6 
70-  3% 
71-  8 
76-5 
76-8 
74-9 
100-0 
100-0 
0-  49064 
1-  98080 
2-  05680 
1-85860 
1  45680 
0-88070 
0-54830 
0-  6979 
2-7568 
2-6880 
2-4000 
1-  9450 
0-8807 
0-5483 
ROOT. 
0-7901 
0-6074 
0  6672 
0-7003 
0-7605 
0-6555 
0-7336 
0-7851 
100-0 
768 
84-4 
88-6 
96-2 
82-9 
92-8 
99-3 
"  Ger  
"  Ross  
"  U.S  
280 
31-6 
27-4 
17-5 
36-0 
40-0 
86-6 
62-3 
57-6 
65-7 
2-1694 
2-1114 
2-5559 
5-4570 
1-8208 
1-8348 
0-9066 
3-4820 
3-6620 
3-8902 
"  Dieterich  
"    TJ.  S.  Fluid  
68-3 
66-2 
iri 
2-6666 
2-7695 
8-1580 
