D ecem ber 4, 1958 C O N F ID E N T IA L M r.

ETHYL CORPORATION 100 PARK AVENUE NEW YORK 17, NEW YORK October 10, i960 Product Service Circular Letter No.

March 3, 1955 Mr.

H E AS S OCIATED ETH YL COMPAN Y LIMITED T r ' - R/engist'eredOffice: t h e a d e l p h i ,L o n d o n ,v k c .2 ^id d m ss a il com m unications u n t ilJu r ih e r notice to: A R T I L L E R Y I^ OTISE, A R T I L L E R Y R OW , L O N D O I , S .

'Treudeni DONALDE.

* December 11, I9I4I, AIR KAIL Dr, William A.

Et h y l Ga s o l i n e Co r p o r a t i o n Ch r y s l e r B u i l d in g 405 Lexingt on Avenue Ne w Yo r k October 10, 1940 Dr.

\; IN TER -OFFICE C D S IlE M N D E N C B i v r i i v i . ( a s i !

January 16, 1963 Mr.

L i l S-'C TE UIITED STATES POTTERS ASSOCIATIOIJ o br a h ic biime r x j a r s sup.vsim .nc3 pr o g r a m t ps t pr o c e e u k s The United S ta te s Food and Brug A dm inistration Method LTB`-83a h a ll bo th e procedure fo r determ ining the re le a se of heavy m etals from ceramic su rfa c e s l-SX'^TXOIJ: In stead of s i x u n ii's i r ^ v i d u a l i y analysed .> act in d ic a te d in f the Ic&eli&to from 3 u n its s h a l l bo blended f o r the cloternanatisn of hoary motsJL r e le a s e .

ETH YL CORPORATION Inter-O ffice C orrespondence N ovem ber 20, 1961 TO: J.

AluminumOreGumpimu, A p r il 4 , 1947 D r .

Memorandum on Hygienic Conditions in The Hetaiurgical Products Departcat of the Magnetic Materials Section of General Electric Company at Ectaore, Michigan.

Ra ssn er and Ra ssn er COUNSELLORS AT LAW PROCTORS IN ADMIRALTY JACOB RASSNER ALAN C.

/ May 29, 3' 37 To: Mont ana Pet r ol eum Associ at i on Boar d of Gover nor s Cont act s on Ai r and Wat er Conser vat i on Re: Act i on by t he St at e Boar d of Heal t h on Ambi ent Ai r St andar ds The Mont ana Boar d of Heal t h hel d a hear i ng Fr i day, May 26, begi nni ng at 7: 30 p. m and concl udi ng Sat ur day, May 27, at 11: 30 a. m. on pr oposed ambi ent ai r qual i t y st andar ds.