202  Some  Studies  on  the  Oxy-pinenes.  {"A™ijJ^ri^*™' 
gives  this  subject  a  thorough  airing.  He  quotes  both  sides  and 
comes  to  the  conclusion  that  ozone  can  be  formed  only  in  the  presence 
of  moisture.  He  considers  ozone  and  peroxide  of  hydrogen  identical, 
and  often  uses  the  expression  "  peroxide  of  hydrogen  or  ozone." 
He  gives  a  very  graphic  description  of  the  poisonous  nature  of 
ozone,  and  then  he  describes  some  beneficial  actions  which  can  be 
ascribed  only  to  peroxide  of  hydrogen.  He  also  states  that  ozone 
ki  unites  rapidly  with  metals,  if  they  are  zvet  " — a  very  clear  thing  to 
us  who  know  the  tendency  of  moisture  to  transform  ozonides  into 
peroxide  of  hydrogen  in  presence  of  a  third  substance. 
He  is  familiar  with  the  fact  that  oil  of  turpentine  transforms  the 
atmospheric  oxygen  to  ozone,  and  ascribes  to  this  property  the  bene- 
ficial effect  pine  forests  have  in  malarial  cases. 
He  describes  different  ways  in  which  "  ozonized  oil  of  turpentine  " 
may  be  prepared,  and  with  our  present  knowledge  there  can  be  no 
doubt  that  it  is  the  ozone  and  not  the  peroxide  of  hydrogen  which  he 
refers  to.  He  cites  cases  in  which  the  administration  of  this  ozonized 
oil  has  been  beneficial  in  cystitis,  gout,  rheumatism,  vesical  catarrh, 
hematuria,  and  many  other  vesical  disorders. 
Speaking  of  the  use  of  an  ozonized  oil  of  turpentine  in  pulmonary 
diseases,  he  cites  Dr.  Theophilus  Thompson,  physician  to  the  Hos- 
pital for  Consumptives,  London,  and  gives  a  number  of  definite  cases 
which  have  been  successfully  treated  with  ozonized  oil.  He  cor- 
roborates this  with  quotations  from  others,  and  at  last  draws  the 
conclusion  that :  "  The  administration  of  ozonized  oils  has  a  most 
remarkable  tendency  to  reduce  the  frequency  of  the  pulse,  in  addi- 
tion to  producing  a  decided  improvement  in  the  general  health  and 
condition  in  consumptive  patients." 
In  the  Annual  Report  of  the  Board  of  Regents  of  the  Smith- 
sonian Institution  for  1864  (p.  174)  Charles  M.  Wetherill  tells  us: 
"  One  of  the  best  ozone  carriers  known  is  the  oil  of  turpentine. 
If  a  bottle  be  one-quarter  filled  with  this  body,  exposed  to  the  sun 
and  frequently  shaken  with  air,  removing  the  stopper  from  time  to 
time  to  renew  the  air,  the  oil  is  speedily  laden  with  ozone."  Further 
down  he  says  that  "  all  turpentine  kept  with  access  of  air  becomes 
ozonized,"  and  ends  up  by  stating  (p.  178)  :  "  From  what  is  known 
at  present  respecting  '  antozone  '  (peroxide  of  hydrogen)  it  would 
seem  that  this  body  plays  an  important  part  in  depriving  the  at- 
mosphere of  ozone."  This  is  no  surprise  to  us,  who  now  know  that 
ozonides  in  contact  with  moisture  easily  form  peroxide  of  hydrogen. 
