AmNovr,'i89iarm'}  Abstracts  from  the  French  Journals.  557 
retards  the  action  of  the  rennet  ferment ;  (5)  the  modification  of 
the  gastric  juice  produced  by  tobacco  lasts  for  some  time  ;  (6)  the 
mobility  of  the  stomach  and  its  resorbing  power  are  augmented 
under  the  influence  of  tobacco  ;  (7)  it  has  no  effect  on  the  acidity  of 
the  urine. 
Hypodermic  injections  of  corrosive  sublimate  in  diphtheria 
and  scarlatina. — Dr.  J.  Jacontini  (Morgagni,  1890)  administered  by 
injections  1  centigram  of  corrosive  sublimate  in  eight  or  nine  days 
during  an  epidemic  of  scarlatina.  The  fever  was  reduced  and  at 
the  same  time  the  manifestations  in  the  throat  were  modified.  En- 
couraged by  these  results  the  author  used  this  treatment  in  two 
cases  of  diphtheria  with  the  satisfaction  of  obtaining  a  rapid  attenua- 
tion of  the  morbid  phenomena  and  followed  by  cure. 
Mouthwash  for  carious  teeth  — A  mouthwash  said  to  prevent 
dental  caries  is  as  follows :  tannin  5  gms.,  tincture  of  iodine  and 
tincture  of  myrrh,  of  each  2-5  gm.;  potassium  iodide,  1  gm.;  rose 
water,  180  gm.  The  mouth  is  rinsed  every  morning  with  one  tea- 
spoonful  to  a  glass  of  warm  water. — {Bull.de  Therapeut.,  1891,  cxx, 
p.  VIII.) 
Examination  for  adulterations  of  tomato  preserves. — Capde- 
ville  [Bull,  de  Th'erapent.,  1 891,  cxx,  p.  277)  divides  the  analysis  into 
an  optical  or  microscopical  and  a  chemical  portion.  The  adultera- 
tions which  are  looked  for  by  the  first  method  are  carrot  and  pump- 
kin, and  this  is  done  by  comparison  with  sections  of  these  vege- 
tables. The  chemical  method  takes  cognizance  of  the  presence  of 
coloring  matters  such  as  eosin,  cochineal  and  grenadin.  For  eosin: 
5  gm.  of  the  preserve  are  treated  in  a  test  tube  with  a  mixture  of 
25  cc.  of  distilled  water,  1  cc.  ammonia  and  25  cc.  amylic  alcohol.  The 
mixture  is  then  filtered,  and  in  case  the  filtrate  is  rose-colored  eosin 
is  present  which  is  also  shown  by  the  fluorescence.  For  cochineal :  5 
gm.  preserve  are  treated  for  24  hours  with  30  cc.  alcohol  of  95  per 
cent.;  the  liquid  is  then  filtered  and  the  alcohol  evaporated  on  a  water- 
bath.  Should  this  residue  on  treatment  with  ammonia  give  a  red 
color,  cochineal  is  present.  For  grenadin  :  The  preserve  is  treated 
with  alcohol,  the  solution  filtered  and  the  filtrate  evaporated  to  dry- 
ness. The  residue  is  treated  with  water  which  dissolves  the  grenadin, 
and  this  aqueous  solution  is  used  for  dyeing  silk.  Hydrochloric  acid 
does  not,  while  a  solution  of  chloride  of  lime  does,  decolorize  the  silk 
even  at  ordinary  temperatures. 
