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Siith Kline & French Laboratories . 150o Spring Garden Street. Philadelphia I. P

May 3, 1961

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Dira tor aiaietion Pesrañt Ceeter f

s, to  aiatay Leric salcz is tte zatea stad by Loev exeyt it is à tr f fsuzrs; taí ie. ic cay ontain coapavte te  cd ari: toata ad,  or the n: f syzstr: croc ss ert zay e sevara stereo isoers prsseat. Ea icizvia is es: follova:

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BecauzaDr.Nleschi Lo tei to ve 4 rmbera lectuosand bas te fulfill a rmser of ctter coaaitzonts, ke aay fiod it a little dCtfrieuio'to send you he data in sávance. Hosover, he vill try mis dest.

Sincerely yours,

Glena E. Ullyet Associata Director or Research and Developsent

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