Am.  Jour.  Pilar m.l 
Dec,  1888.  ; 
Properties  and  Uses  of  Sozoiodol. 
621 
The  white  corpuscles  of  the  blood  were  not  increased  in  number  by 
borneol.  Binz  has  shown  that  most  essential  oils  have  the  power  of 
increasing  the  white  corpuscles. 
Glycosuria  occurred  in  cases  of  poisoning  by  borneol,  in  which  con- 
vulsions were  a  marked  feature. 
On  temperature  no  constant  result  was  obtained. 
From  his  experiments  Dr.  Stockmann  concludes  : — 
(1)  That  the  camphor  group  is  closely  allied  to  the  alcohol  group  in 
physiological  action — menthol  approaching  it  most  nearly ;  as  the 
number  of  H  atoms  diminishes  in  the  different  camphors  we  get  an 
increased  tendency  to  produce  convulsions  of  cerebral  origin. 
(2)  That  pharmacological  investigation  confirms  the  value  of  these 
drugs  in  cases  of  increased  spinal  excitability. 
(3)  As  cardiac  stimulants  they  are  closely  allied  to  alcohol,  but,  in 
addition,  they  directly  dilate  the  peripheral  vessels — an  action  which 
Kobert  has  shown  not  to  be  produced  by  ethyl  alcohol. 
(4)  Borneol  is  less  irritating  locally  than  common  laurel  camphor, 
and  could  be  given  in  much  larger  doses  without  causing  untoward 
cerebral  symptoms. 
PROPERTIES  AND  USES  OF  SOZOIODOL. 
By  Leopold  Larmuth. 
This  substance,  which  was  introduced  by  the  firm  H.  TromsdorfF,  of 
Erfurt,  as  a  substitute  for  iodoform,  is  chemically  an  iodated  phenyl 
sulphonic  acid,  more  exactly  diiodoparaphenolsulphonic  acid.  It  is 
prepared  in  the  following  manner :  By  the  action  of  concentrated 
sulphuric  acid  on  phenol,  one  of  the  H  atoms  of  the  benzol  ring  is  re- 
OII 
placed  by  the  group  SO3H.  The  body  C6H4<  qq  ^  being  obtained,  the 
potassium  salt  of  this  acid  is  prepared,  dissolved  in  water,  and  treated 
with  iodine  chloride.  By  this  means  two  hydrogen  atoms  of  the  benzol 
ring  are  replaced  by  iodine,  and  the  potassium  salt  of  the  iodated  acid 
separates  out  Cgllg^  I2  ;  it  is  purified  by  repeated  crystallization  from 
\SO3K 
water  and  dried.  It  occurs  in  the  form  of  regular,  well-formed, 
colorless  and  odorless  crystals,  which  are  slightly  soluble  in  cold 
water,  1-8  parts  being  dissolved  in  100  parts  of  water  at  17°C.:  it  is 
