86  Two  Toxicological  Investigations.  {AFebJr°uarVfi9ao5m' 
when  the  following  materials  were  removed  :  the  remaining  kidney, 
8  inches  of  the  intestines,  a  section  o  '  the  liver,  a  section  of  the 
lung,  the  spleen,  and  portions  of  the  muscular  tissue  from  the  calves 
of  both  legs.  These  were  placed  in  separate,  new,  clean  jars  and 
sealed,  and  delivered  in  person  to  Prof.  Frank  X.  Moerk  for 
analysis. 
The  Stomach  and  Contents.  —  The  stomach  was  first  taken  for  ex- 
amination. It  was  in  good  condition  and  tied  at  both  ends  with  a 
white  string  in  surgeon's  knots.  It  was  cut  open  and  the  contents 
poured  into  a  clean  dish.  The  mucous  surface  was  carefully  exam- 
ined, and  was  almost  of  a  uniform  pale  pinkish  color,  and  showed 
no  evidence  of  undue  inflammation  or  reddening.  In  a  few  places 
some  mucus-like  substance  still  persisted,  and  an  examination  by 
the  unaided  eye,  and  also  with  a  pocket  lens,  failed  to  disclose  any 
particles  of  grit  or  crystals.  There  were  only  a  few  fine  particles, 
resembling  charcoal,  adhering  to  the  wall  at  different  points.  The 
contents  consisted  of  50  c.c.  of  partly  digested  food,  resembling  and 
having  the  odor  of  sour  milk.  The  surface  was  washed  with  the 
distilled  water,  and  the  washing  added  to  the  contents,  and  the 
entire  bulk  made  up  to  100  c.c. 
One-quarter  of  this  amount  (25  c.c.)  was  taken  and  rendered  dis- 
tinctly acid,  and  distilled  for  volatile  poisons,  such  as  hydrocyanic 
acid  or  carbolic  acid,  which  had  been  suggested  ;  the  results,  how- 
ever, were  negative.  Another  25  c.c.  was  tested  for  alkaloids  or 
other  organic  poisons,  but  I  failed  to  get  any  results,  and  a  small 
portion  was  then  acidified  and  tested  with  hydrogen  sulphide.  It 
yielded  a  decided  yellow  precipitate.  This  precipitate  was  found  to 
be  insoluble  in  hydrochloric  acid,  but  soluble  in  ammonia,  ammo- 
ilium  carbonate  and  potassium  bisulphite,  indicating  that  it  was 
arsenious  sulphide.  This  conclusion  was  readily  confirmed  on  the 
application  of  Reinsch's  test  with  a  portion  of  the  sulphide.  Crystals 
of  arsenic  trioxide  were  readily  obtained  by  sublimation  from  the 
copper,  and  on  dissolving  these  from  the  tube  with  a  small  quantity 
of  boiling  wrater,  the  solution  readily  responded  with  characteristic 
arsenic  precipitates  with  ammonia-cupric  sulphate  and  silver  nitrate. 
A  small  portion  of  the  sulphide  mixed  with  a  dry  sodic  carbonate, 
and  potassium  cyanide  was  readily  reduced,  giving  a  garlic-like 
odor,  and  forming  a  metallic  ring  on  the  tube.  With  sodium  oxa- 
late as  a  reducing  agent,  similar  results  were  obtained,  and  these 
