I am spending a few months with Francis Ryan at Columbia and am forgetting Neurospora and chickens and electron microscopy
temporarily to do some mutation experiments with E. coli. I would like to produce mutations in protoplasts and wondered if
you have any dap double mutants with amino acid or [ . . . ] base requirements which you would be prepared to part with.
I would be grateful if you could let me have subcultures of them.
I have an opportunity coming up of getting over to the west coast, via the Neurospora Information Conference at La Jolla March
2-4, and wondered if it would be convenient to visit you either just before,
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or just after this time.
Please give my regards to your wife and to Gus Nossal if he is still with you.