140 LABORATORY MANUAL OF MICROBIOLOGY 



4. Centraalbureau voor Schimmelcultures, 

 Professor J. Westerdijk, 



Baarn, Holland. 



5. Professor Alfred Jorgensen, 

 Laboratory of Fermentology, 

 Copenhagen, Denmark. 



6. Professor Dr. E. de Herics-Toth, 



Roy. Hungarian Institut of Fermentology, 

 Budapest II. Debroi u. 15. Hungary. 



7. L' Institut Pasteur, 

 Director, Dr. E. Roux, 

 Institut de Microbiologie, 

 25 Rue Dutot, 



Paris 15. France. 



