THE  AMERICAN 
JOURNAL  OF  PHARMACY. 
FEBRUARY,  1891. 
SOLANUM  CAROLINENSE  (Ltnne). 
By  G.  A.  Krauss,  Ph.G. 
Read  before  the  Philadelphia  College  of  Pharmacy  at  the  Pharmaceutical  Meeting, 
January  20. 
II.  THE  LEAVES.1 
The  leaves  are  broadly  oblong,  sinuate-serrate,  and  their  mibrid  is 
beset  with  from  6  to  10  prickles  of  about  3  mm.  length.  The 
microscopical  examination  revealed  a  beautiful  appearance  due  to 
numerous  stellate  hairs  or  scurfs  upon  both  surfaces,  and  approxi- 
mately estimated  at  from  800  to  1,500  on  each  leaf. 
For  analysis  the  leaves  were  collected  by  the  author,  near  Mem- 
phis, during  the  month  of  September,  and  reduced  to  the  requisite 
*  fineness  of  powder  : 
\4  /'/  Petroleum  ether  extract : 
wk  /I  •  Per  Cent. 
\A     d#f  Volatile  oil,  0*014 
Wu^jy  Fixed  oil  and  chlorophyll,  ....    1  708 
ttej&ffl^.  — 1722 
s^F^f  Ether  extract  : 
/rjy      Vjj  Soluble  in  water  ;  containing  alka- 
J0^^         p                           loid,  "...  0*060 
M  Soluble  in  alcohol  ;  resin,  chloro- 
/§                           phyll,   1-040 
S                        Soluble  in  ether  ;  resin,   0-338 
¥  ■    i"438 
Alcohol  extract : 
Soluble  in  water  ;  KC1  and  solanine,   2*930 
Soluble  in  ether  ;  chlorophyll  and  resin,   0-420 
Loss,  ,   0-110 
  3-460 
1  For  analysis  of  the  root  bark,  see  this  Journal,  December,  1890,  p.  602. 
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