362 
REPORT  ON  HAIR  DYES  AND  COSMETICS. 
the  filtering  power  of  the  lungs  were  made  I  had  no  thought, 
and  but  little  knowledge,  of  the  germ  theory.  Their  value  as 
evidence  is  enhanced  by  the  consideration  that  they  are  abso- 
lutely independent  of  all  theoretic  bias.* — The  Chem.  and  Drug., 
Lond.,  May  14,  1870. 
KEPORT  OF  PROF.  C.  F.  CHANDLER  TO  THE  METROPOLI- 
TAN BOARD  OF  HEALTH. 
Col.  Emmons  Clark, 
Secretary  Metropolitan  Board  of  Health. 
Sir  : — In  response  to  the  resolution  of  the  Board,  directing 
the  Chemist  to  examine  the  various  hair  tonics,  washes,  cos- 
metics, and  other  toilet  preparations  in  general  use,  and  to  re- 
port what  ingredients,  if  any,  they  contain  of  a  character  injur- 
ious or  dangerous  to  those  who  use  them,"  I  beg  leave  to  submit 
the  following  report  of  the  results  thus  far  reached.  My  ex- 
amination has  been  specially  directed  to  the  mineral  poisons  ; 
no  tests  have  been  as  yet  made  for  vegetable  or  animal  sub- 
stances, as,  for  example,  cantharides,  which  I  have  reason  to 
believe  is  sometimes  employed. 
The  articles  which  I  have  examined  may  be  classed  as  : 
I.  Hair  tonics,  washes,  and  restoratives. 
II.  Lotions  for  the  skin. 
III.  Enamels. 
IV.  White  powders  for  the  skin. 
I.  Hair  Tonics.  Washes,  and  Restoratives. 
Of  these  sixteen  have  been  examined,  and,  with  but  one  ex- 
ception, all  have  been  found  to  contain  lead,  generally  in  the 
form  of  acetate  or  sugar  of  lead. 
1.  Hoyt's  Hiawatha  Hair  Restorative.  David  Wright,  Pro- 
prietor, 112  South  Street,  New  York. 
This  is  an  ammoniacal  solution  of  nitrate  of  silver,  containing 
*The  black  wreaths  produced  by  placing  the  flame  of  a  spirit  lamp 
underneath  the  track  of  a  sunbeam  may  now  ibe  clearly  though  imper- 
fectly seen  in  every  drawing-room  in  London.  The  light,  save  that  pass- 
ing through  a  single  aperture,  ought,  as  far  as  possible,  to  be  excluded. 
A  candle  dame  also  shows  the  effect,  but  very  imperfectly. 
