39 
animals,  descend  undoubtedly  by  way  of 
adaptation  from  freeliving  species.  The 
complete  study  of  the  blastomvcetes  is  lea¬ 
ding  to  an  other  confirmation  of  this  natu¬ 
ral  descent.  Complete  mycological  researches 
can  only  be  favourable  to  this  conclusion,  no 
matter  which  the  studied  fungus  may  be. 
Treatment. 
The  diagnosis  of  the  mycosis,  caused  by 
Oidium  brasiliense,  once  established,  safe  and 
speedy  cure  is  warranted.  We  obtained  com¬ 
plete  restablishment  of  patients,  suffering 
from  this  disease,  in  more  than  ten  cases. 
We  point  out,  that  in  the  treated  patients  the 
period  of  the  disease  varied  extremely,  from 
the  simple  apical  lesions  and  affection  of 
tracheo-bronchial  glands  to  cavern  formation 
in  both  apices,  with  extensive  breaking  down 
in  some  other  parts  of  the  lung.  In  some 
cases  we  witness  real  resurrections,  the  more 
remarkable,  as  the  prognosis  whould  be 
inexorablyfatal,  if  such  cases  were  due  to 
bacillary  tuberculosis. 
Table  I. 
Fixationtest  with  blood  of  rabbits,  immunized  by  cultures  of  the  O.  brasiliense. 
Inactivated  (56) 
serum  of  immu¬ 
nized  rabbit. 
Inactivated  he¬ 
molytic  serum 
(1/00) 
Washed  blood 
Emulsion  of  0. 
brasiliense 
Complement 
(1/10) 
corpuscles  of 
sheep  (5°/°)  with 
physiol,  saltsol. 
Human  syphili¬ 
tic  serum 
Results 
1)  0,06 
0,1 
1  CC. 
1  CC. 
1  CC. 
_ 
No  hemolysis 
2)  0,125 
0,2 
« 
« 
« 
- 
« 
3)  0,25 
0,5 
< 
« 
« 
- 
« 
4)  0,5 
1,0 
< 
« 
« 
- 
Total  « 
5)  1  cc. 
— 
« 
€ 
« 
— 
Almost  im¬ 
perceptible 
6)  - 
1  cc. 
« 
« 
« 
~ 
No  hemolysis 
7)  1  cc. 
- 
- 
— 
« 
- 
«  < 
8)  1  cc. 
- 
1  cc. 
1  CC. 
« 
0,4  cc. 
Complete  « 
Note.  The  tubes  completed  to  4  cc.,  except  number  8  of  the  series  1.  4  to  16  h.  at  37°.  Reading  after  2  h. 
Table  II. 
Fixationtest  with  sera  of  patients,  suspected  of  O.  brasiliense. 
Antigen  :  emul¬ 
sion  of  Oiaium 
inactivated 
Complement 
Inactivated  he¬ 
molytic  serum 
Washed  blood 
corpuscles  of 
Results 
brasiliense 
(1/10) 
!l/00) 
sheep  (1  o/o) 
1)  0,3 
0,3 
1  CC 
1  CC. 
1  CC. 
No  hemolysis 
2)  0,3 
0,1 
« 
€ 
« 
< 
3)  0,1 
0,3 
€ 
< 
« 
« 
4)  0,1 
0,1 
C 
« 
« 
€ 
5)  0,6 
- 
« 
« 
« 
Complete  * 
6)  - 
0,4 
« 
« 
€ 
<  € 
Note.  The  tubes  completed  to  4  cc.  with  physiological  salt  solution  at  8,5  0/00.  Reading  after  2  h. 
