Aj»1mair,,Pi'il4m'J       Boohs  as  a  Source  of  Disease.  21 
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library  by  Dr.  W.  A.  Kuflewski  and  are  of  value  as  showing  the 
germs  to  be  found  on  books  long  in  use. 
These  books  were  selected  by  Mr.  F.  H.  Hild,  Librarian,  and 
Dr.  Reynolds,  the  object  being  to  get  the  books  that  were  most  worn 
and  most  soiled,  and  the  examination  was  made  by  Dr.  Adolph 
Gehrmann,  who  reported  as  follows : 
D  2017a    From  delivery  station,  14  years. 
19       Cultures  from  page  57,  brown  spot — negative. 
Cultures  from  torn  places  on  cover.  <' 
(A)  Staphylococci  and  saprophytes. 
(B)  Negative. 
C  7357      Delivery  station,  20  years. 
Cultures  from  title  page — negative. 
Cultures  from  title  page — negative. 
Cultures  from  page  19 — negative. 
Cultures  from  page  19 — negative. 
H  2455c    Delivery  station,  6  years. 
Cultures  from  top  of  page  278 — negative. 
Cultures  from  leather  back — Staphylococcus  pyogenes  albus. 
Cultures  from  bottom  edge  of  pages — Staphylococcus  pyogenes 
albus. 
Cultures  from  top  edge  of  pages — saprophytes  and  S.  pyogenes. 
F  8346c    Circulating  department,  2  years:  Popular  juvenile. 
Cultures  from  leather  back — negative. 
Cultures  from  top  of  pages — negative. 
Cultures  from  page  190 — negative. 
F  494aa     Circulating  department,  26  years  :  Popular  fiction. 
Cultures  from  spot  on  page  25 — negative. 
Culture  from  leather  back — negative. 
Cultures  from  bottom  pages — negative. 
RR  281     Buck's  Cyclopaedia,  14  years  :  Reference  book. 
Cultures  from  leather  back—  1  colony  of  Staphylococci. 
Cultures  from  edge  of  cover — 1  colony  of  Staphylococci. 
Cultures  from  dirty  page — Staphylococci. 
Cultures  from  clean  pages — Staphylococci. 
Summary  of  Results. 
Negative  results :  3  books — C  735 ;  58  346c ;  and  E  494aa. 
Cultures  from  covers  showing  Staphylococci:  3  books — D  2017a,  H  2455c,  and 
281. 
1 
Cultures  from  pages  showing  Staphylococci:  2  books — H  2455c  and  RR281. 
I 
