How thoughtful of you to recall what I wrote >> [more than] 20 years ago! The deeper my regrets that my calendar is
fully booked for the time of your meeting. If it should open up immediately I will write back to you.
You may recall how Dobzhansky characterized the pneumococcus transformation as a "directed mutation" even before Avery
and co. characterized DNA there.
This may seem a semantic nicety but Avery (and Harriett Ephrussi) were informed by it in such a way that they avoided doing
or interpreting multi-marker recombination expts. in a simple, straightforward way; and this was left to Rollin Hotchkiss
some years later.