236 THE ANTIBIOTICS 



announced in the Russian literature, such as albomycin; other preparations 

 have been announced in Japan, such as cremomycin, fuscamycin, oriento- 

 mycin, podomycin, navacid. 



It is the hope of the authors that in spite of the above limitations, this 

 guide will thus make available the rapidly accumulating information on the 

 classification and characterization of the actinomycetes, a group of or- 

 ganisms that have now become famous because of their ability to produce a 

 most interesting and valuable group of metabolic products, namely the 

 antibiotics. 



