[PAGE 1]
Pr. Farris Fsball
Depurtront Eoalth, Education, & Welforo
Public Eoalth Sorvics
Lexirgtoz, Keatuoky

Dear Dr. Labellt

Fank and Ed havs reported to re fully on thoir recent trip to your facility and I an jotting dorn a few cozszts that I vould like you to knoz.

I feel as though your exmerinental vork is vary solidly laid out along lines very pertinent to our objeotivos. The fosairating preliminory indicsticss of a rapidly developing, but tongorary tolarance to the matorial is of gract ioportazce end interest to us. I au sure that it vill interase you to kan that I havo czked Dr. Abransoa to confirn this observation and his report to ms coplotely corroborctos your obsorvations. We look forsard tó receiving nore date along theso lines fron you.

Iy virtue of my having soon Dr. Sabrall on other matters in tho paut month, he hoo been kegt Pully inforred on your work ssl indicates that ha will probably de dom to visit you aná your laboratory in ths next month or tro.

With congrntunlations for sn axcellans start on thia dirficult roceareh problen, cnd vith varmest yorsonal regards to you cul your vife, X ronain,

Sincerely youcs,

September 17, 1953

187475 Declescified by 4 FEB 1977 dzts