Document wgm3emLKXyDwDazR2m4mEj9Y3

y C l a s s o f Se r v ic e ^ SYMBOLS N . TM U a fast message u n less'?m char* DL --Oay Letter N L = NigKt Letter actcr Is Indicated by th e 1201 i_T*---Interna d o n ai proper symbol.- 1 _____s. * / W. P. MARSHALL. P r c s id c n t ^ Letter Telegram . I 38T h e filing time show n in the date lin e o n dom estic telegrams 1$ ST A N D A R D T IM E at p o int o f origin. T im e o f receipt Is S T A N D A tf f i^ ^ jE j^ Y o ig jg f -- 1 CTA058 DEB67 j' DE--B0A 0lj;L0H G PDfFAX ROYAL OAK MiCH 26 9ilAM E* DR R T k EHOE, CONFIDENTTAC, COLLEGE OF lEDTCT NE- HUNTVERSJTY OF. CYNCTNNATT EDENVAVE CJN ; rIt -, t "1 FOLLOWING IS VERBAJlM QUOTE FROM CARBIDES INTERFERENCE STATEMENT JN AP?3 VERSUS AP;?30 CASe| _ f ' " v .' 3 ^ jq "JHERE ARE a NUMBER OF DIFFERENCES BETWEEN CYCLOPENTADTENYL MANGANESE TRICARBONYL {TE AP~ 30) AND _ . m'trn- : ... . . ...... .. ^ '.** .... ...... .. . ^ jjHE COMPOUND OF CLA.YM 3 (TE AP- 3) WHICH ARE EQU/ UXY' ISJRTk TNG AND UNEXPECTED. .THUS. CYCLOPENTADIENYL ' * MANGANESE JRJCARBONYL IS GREATLY MORE TOXIC JHAN THE C o mpo u n d o f c a l Tm 3. t h e m ed ia n l et h a l d o se ( l d 50 ) f o r RATS IS 3 . 3 TIM ES LESS FOR THE FORMER THAN FOR THE LATTER TH E COM PANY W IL L A PPRECIATE SU G G ESTIO N S FROM IT S PATRON S CO N CERN IN G IT S SERVICE . f i '' ' C l a s s o f Se r v ic b . _' - / W ESTERN"ThU ia a fast message , ^ SYMBOLS D L --l>ay Letter ^ unless ft* thjjetred ch ar acter is indicated by the proper symbol. f \ TELEG RA M W. P. MARSHALL, P r k 9 io s n t . ' N L ^ N g lit Letter 1201 - y_IntcrnatU^nal . " Letter Telegram . V- ----- -- * T h e filing time show n in th e date line o n dom estic telegrams is ST A N D A R D T IM E a t p o int o f origin. T im e o f receipt s ST A N D A R D T IM E a t point o f destination __ ____ __ _ . , . = .. . ; -3 -- I = '- AND TH PERM ISSIBLE TIM E GF-EXPOSURE GF RATS TO THE . _____ S'" 't& it, . -- ___ _ ____ '=- -- **. Si.- Sif VAPORS OF THE JWO SUBSJANCES IS 10 JO 12 TIM ES LESS : ,F0R CYCLOPENTADJ;ENYL MANGANESE 'JRjCARBON ijf JHAN FORHHE 'L COMPOUND OF CLAIM 3 . AGAIN, TOXICITY IS AN IMPORTANT FEATURE IN ADAPTABILITY AS A GASOLINE ADDiTIVE'' ^ Vr.` _ . '-''TSi'iir . ... -..'t ,l ,-S-. 1 DO YOU HAVE ANY COMMENT OR CONTRADjCjJlONtf ' ARTHUR S HAWKES ETHYL C0RP=`-