1. Do you still have E. coli (betimes yelept Pseudomonas fluorescens) strain Tr 13? Esther is doing some genetic work on P.
spp. X E. app. and this might be interesting. Was Tr 13 fluorescent? We won't bother if not.
2. Have you got Spirillum itersonii or some similarly easily grown, motile, spiral bacteria?