R. Bruce Wallace
Jan 3 1982
DNA as mutagen
How thoughtful of you to recall what I wrote 20 years ago!  The deeper my regrets that my calendar is fully booked for the time of your meeting.  If it should open up unexpectedly I will write back to you.
You may recall how Dobzhansky characterized the pneumococcus transformation as a "desired transformation" 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 single, straightforward way; and this was left to Rollin Hotchkiss some years later.
Best wishes,
Joshua Lederberg