NON-INFLAMMABLE  CLOTHING. 
541 
Attempts  to  apply  ozone  in  restoring  oil  paintings  gave  only 
negative  results,  the  action  having  been  irregular. — American 
Journal  of  Science  and  Arts,  September^  1861,  from  Annalen 
der  Chemie  und  Fharmacie. 
NON-INFLAMMABLE  CLOTHING. 
Dr.  Odling,  of  Guy's  Hospital,  in  a  letter  addressed  to  a 
contemporary,  on  the  subject  of  the  recent  crinoline  accidents, 
gives  the  following  valuable  information  on  the  effects  of  certain 
salts  upon  fabrics: — The  various  means  proposed  for  rendering 
textile  fabrics  non-inflammable  were  carefully  investigated  a 
short  time  back  by  two  well-known  chemists,  Messrs.  Yersmann 
and  Oppenheim.  An  account  of  their  experiments  was  read  at 
the  Aberdeen  meeting  of  the  British  Association,  in  1869,  and 
was  afterwards  published  in  the  Journal  of  the  Society  of  Arts, 
and  in  a  separate  form  by  Triibner  and  Co.,  of  Paternoster-row. 
They  showed  that  linen  and  cotton  goods  dried  after  immersion 
in  a  solution  of  one  or  other  of  several  salts  possessing  the  pro- 
perty of  non-inflammability,  and  that  the  best  results  were  ob- 
tained with  a  solution  of  sulphate  of  ammonia,  or  of  tungstate 
of  soda,  neither  of  which  liquids  produced  any  injurious  efi'ect 
upon  the  tissue  or  color  of  the  fabric.  The  tungstate  of  soda 
solution  was  found  most  applicable  to  laundry  purposes,  on  ac- 
count of  its  not  interfering  in  any  way  with  the  process  of  iron- 
ing. Muslins,  &c.,  steeped  in  a  7  per  cent,  solution  of  sulphate 
of  ammonia,  or  a  20  per  cent,  solution  of  tungstate  of  soda,  and 
then  dried,  may  be  held  in  the  flame  of  a  candle  or  gas  lamp 
without  taking  fire.  That  portion  of  the  stuff  in  contact  with 
the  light  becomes  charred  and  destroyed,  but  it  does  not  inflame, 
and  consequently  the  burning  state  does  not  spread  to  the  rest 
of  the  material. — Chemist  and  Druggist,  London,  August,  1861. 
ACTION  OF  SULPHATE  OF  COPPER  WHEN  EMPLOYED  AS  A 
PRESERVATIVE  OF  WOOD. 
Koenig  has  investigated  the  chemical  reactions  which  occur 
when  wood  is  impregnated  with  a  preservative  solution  of  blue 
vitriol.    He  finds  as  a  general  rule,  that  a  certain  quantity  of 
