Could anyone out there tell me how to select for tetracycline
_sensitive_ _E. coli_ with fusaric acid?  I would appreciate any
comments on the reliability and ease of the procedure and any      
references you may know of offhand.  I've heard that this selection can be
done, but nobody I know has tried it.  
        If you have any ideas, please respond by email.  
        Thanks in advance.

                                        -Sanjay Krishnaswamy