CALIFORNIA INSTITUTE OF TECHNOLOGY
PASADENA
woncay, September 21,1953.

DIVISION OF BIOLOGY
KERCKHOFF LABORATORIES OF BIOLOGY

Dear Xsther and Jos lma,

AS you see,I have arrived safely after a nost intriguing journey
which I would'nt hve missed for anything. It was rather dull as far 2s Denver,but
thereafter we passed through Rocky Mountain National Park and Salt lale City and
visited Bryce,Grand Canyon and Zion National rarks,ending up with Hoover Dam and
that extrsordinary place las Vegas where we had as wild and dissolute a night is our
small son would allow. I have acquired a residence and an wginning to find my way
around this place.

Iwant to thank you both very much for yow hospitality to me
during my short sta at wiadison. I much appreciated your mving m to stay at your
home and feel that the opportunity of meeting you,as well as what I learnt fom you,
more than justified my visit. I was only sorry that the stimulus could'nt lve been
applied for longer.

Jim Watson arrived here today and I was sorry that he was'nt
able to visit you m route. I hope to start i.amnising some rabbits next monday
and will let you mow if I gat any signifiemnt results. You offered me a coy of
your useful ii=TLBy- auxotroph ani I would be glad if you could let m have this.

Un plating out the stock cultwes which I brought wth m I find that my 58-161/7-
(the Spicer strain) has gine been contaminated with Pyocyaneus and is no longer vieble.
I think you heve this and I would tw very glad if you would sent it alone as well.

It would t:ke quite some time to gst it fm. London. le se let me have a soy of
one or two of the shotos you took too,nle set

‘ith best wishes ind .aany thanks to you doth,

Sincerely yours,

(dul