February 2, 1951.
Dear Profeascor Barling:

. If you can supply 100 - 150 gas. of L-rhamnose, I will be glad te purchase
it for the .08/g. you mentioned. May I also take you up on your offer fer the
Dearabinose? L-arabinose 1s a compund we can obtain commercially in adequate
amounts, and I would not be justified in accepting your effer of it, but ay
thanks nevertheless. .
There is no special hurry about this at all. If you find it inconvenient

‘to see the material here in person, I'll be glad to send a messenger after it.
My University extension is 4217. oo .

° - Sincerely,

_ Joshua Lederberg