JLeBL3 J.

COPY Dr.

June 19th, 1951 University of Cincinnati College of !'

Cin c in n a ti, Ohio June 20, 1955 Dr* 0 B* Willoughby Chemloal Department Experimental Station B* I. duPont do Wamours and Co* Wilmington, Delaware Dear Dr* Willoughby I fool that I owe you an apology for not batring at least acknowledged tha receipt of your letter of January 22nd long before thle* I hare your last letter written May 29th* During the past two weeks I hare been so busy with calculations it was impossible for me to write s suitable answer to your letter* It was very con siderate of you to forward the details of the bismuth separation prior to the publication of your paper* In looking through my file I find that I have lost the only copy of my letter to you dated Jaraxary 7th* If you still have this letter, would it be convenient for you to send mm a copy?

IN TER-O FFIC E CORRESPONDENCE Et h y l Ga s o l i n e Co r po r a t i o n Ch r y s l e r Bu il d in g 135 Ea s t 4 2 n d St r e e t N E W Y O R K July 29, 1950.

July d, 1956 D r.

M a r c h 25, 1951.

*14 U. . .I o** SSTABUSKED 1802 E.

Memo to: Dr.

March 1, 1953 Dr* D* W* Johnson 52 Oreenrldge Avenue White Plains He?

July 3, 1955 WUDOan.rfad.fsSihcRS.ie.naPgnRoutiof.tbanlISti,cniaoIdy?

ANDREW F L E T C H E R .

July 30, 1956 M r.

/ su e.

G l e n s Fa l l s ,N,Y.