boiling  water.  On  adding  a  few  drops  of  the  alcoholic  solution  to 
water  a  turbidity  was  produced  which  disappeared  on  heating  and 
reappeared  on  cooling,  the  substance  separating  after  some  hours 
in  crystalline  flocculi. 
Concentrated  sulphuric  acid  dissolved  it  with  a  dark  red  color, 
forming  on  dilution  with  water  a  purplish  precipitate  which  was  not 
taken  up  by  chloroform. 
Strong  nitric  acid  dissolved  it  with  a  yellow  color  which  changed 
to  red  on  heating  with  evolution  of  red  fumes  of  N02.  The  addi- 
tion of  an  excess  of  water  now  produced  a  small  amount  of  a 
yellowish-white  precipitate,  which  with  aqueous  alkalies  gave  no 
color  at  first,  but  gradually  dissolved  turning  red  after  some  time. 
In  alcoholic  solution  the  substance  gave  no  reaction  with  ferric 
chloride.  It  was  not  dissolved  by  hot  aqueous  alkalies.  It  melted 
at  1190  C,  remaining  after  melting  as  an  amorphous,  transparent 
resin.  Glacial  acetic  acid  dissolved  it  very  readily  on  warming,  and 
subsequent  dilution  precipitated  it  unchanged'.  Digestion  with 
dilute  hydrochloric  acid  produced  nothing  capable  of  reducing 
alkaline  copper  solution.  It  burned  with  a  smoky  flame  giving  an 
aromatic  odor  slightly  suggestive  of  coumarin. 
Dry  chlorine  gas  passed  into  the  ethereal  solution  produced  no 
precipitate.  Evaporation  of  the  ether  left  a  soft  amorphous  residue 
insoluble  in  water,  sparingly  soluble  in  cold,  more  readily  in  hot 
alcohol,  separating  on  cooling  in  amorphous,  flocculent  masses 
which  on  drying  left  a  brittle  resin  melting  to  a  thick  viscid  liquid 
at  900  to  950  C.  The  solution  after  heating  with  alkalies  and 
saturating  with  nitric  acid  gave  a  precipitate  of  Ag  CI  with  silver 
nitrate. 
A  number  of  combustions  were  made  with  the  following  results  : 
I,     '1441  gm.  substance  yielded  -3281  gm.  C02  and  '0676  gm.  H20. 
II,     -1151       "  "  -2864      "      "       -0541    "  " 
III,       -1212   '      "  "  '3005         "        "         -0585  " 
Calculated  to  percentages  this  gave 
1. 
11. 
in. 
c, 
H, 
O, 
67  73 
5-21 
27*06 
67-86 
5*22 
26-92 
67-62 
5-36 
27*02 
