Document 6Rx4d130KYYpbXrd9qm9Y7vgR

July 29, 1968 Dr. Joseph C. Calandra Industrial Bio-Test Laboratories, Inc. 1810 Frontage Road Northbrook, Illinois 60062 Dear Joe: I have enclosed two articles, one from the Swedish press and one from the British technical press covering the subject that I wish to talk to you about on Thursday. Dr. Tucker and I will be arriving on American Airlines Flight 284 at 8j10 a.m. Sincerely yours, EPWtcjs Elmer P. Wheeler Manager, Environmental Health DSW 034645 STLCOPCB4018472