Thank you for your letter and the reprint "Bacterial Variation in Escherichia coli".
I would very much like to accommodate your request for a visit here. Unfortunately, our facilities are limited, and there
might be some difficulty in finding space in which you could do experimental work. However, it might be possible to make
some arrangement for a few weeks during the summer months, if you can find suitable support for your personal expenses. I
regret that I cannot offer to be more hospitable, but hope that you will be able to take advantage of what we have available.