This advertisement appears in Engineering News-Record, February 17, 1927 Underwater pipe lines are at the mercy of corrosion unless given properred-lead proteetfen For Submerged Steel this special protection Small quantity of litharge added to red-lead hardens the paint film-- It is of the greatest importance to brush out each coat well and to allow as much time as possible between coats.

Et h y l Ga s o l in e Co r p o r a t io n 25 BltOADWAY Ni:w Yo k k IN REPLY PLEASE REFER TO -'ebb April 13, 1927 Dr.

February 14, 1925* Dr* Alioi Baalltoai School of Fublio Health, Harvard University, 60 Tea Dyke Street, Boston, ass* Dear Dootor Hamilton 1 am very glad to receive your letter of February lth with referenee to the subject of tetra-ethyl lead and in reply to attempt to explain to you briefly the sequence of events to date with referenoe to this matter* Several years ago 1 was informed that a corporation intended to nee something of this eort and began to Initiate an Investigation as to its possible h&rmfulness* 1 as informed, however, that the Bureau of Mines was about to undertake a similar Investigation and, of course, took no further steps* Some months ago X reoelved a letter from Dr* Tandell Henderson oailing my attention to the use of the substance and suggesting a conference* 1 addressed a letter to each of the persons when X oonld ascertain were interested in this matter asking for advice as to whether they considered a conference advl*efeiii4$$ whether the present was an opportune time* The majority of the answers were to the effect that it would be better to postpone the conference until further investigation had been made by men working along this line* Several days ago X reoelved a letter from Dr* Henderson enclosing a copy of a letter which he had written orltloielng the technique used by the Bureau of Mines in their observations and a somewhat similar letter from Dr* Haven Emerson with reference to the natter* 1 at once took the matter up with our scientific division and appointed the first vacant date, which is next Monday, for us to further consider the subject of calling a conference and X shall be glad to communicate with you with reference to our decision* X personally can see no possible objection to a round table discussion of the whole matter and shall again take up the question of a conferonce with those interested* X am extremely gratified that the Oarage Workers Union feels that this Service would conduot an impartial investigation and more that you feel the same way about it* X hope that you had a pleasant and profitable trip to Moscow and X would like very much to have an opportunity of discussing your trip with you* Sincerely yours.

F.

Ap ril 25 1925 Dr R B H* Grndwohl Gradwohl La b o r a to r i e s 551I4.

COIlsitHeErS-POOfNfDiEoNeCE E t h y l G a soline C o r p o r a t i o n 2 5 Broadway N e w Y ork July 9, 1929. , Dr.

|lejrartmxnt irf ^nsixtt (Office nf lliz Assistant tor tJpe ^ttamrg (Srnrrul ^Hashingtim October 2, 1928.

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ETHYL COFPOF.ATION Chrysler Building Hew York 17, N40. 5YL. exington Av.

Goods J&pals-c Jade Green gnaael Consistency For Use on FORMULA RECORD AffiO𝔦 Formula Y~l23i Data 1-29-1925*0^ $0.

AUTOMOTIVE FINISHES REPRESENTATIVES CONFIDENTIAL PRICE LIST KFFECTIVS APKIL 15, 1927 abjnt ta cku| wtikoot imUi TSUO: Om par not far ctth tan day* fran data at Isnln, or thirty day* oat Th e Sh e r w in -Wil l ia ms Co .

S3AIH0HV IVNOIiVN 3h i i v asonaoH dsy IN ANSWERING REFER TO N o ..

VOL 30 NO. 3.

June 14* 1926# Mr* Clinton Crane* St* doaoph.Lead Company, 2$Q Park kmm&i .

Wf*_J f \ ' California Historical Society for reference use only "Cl o s u r es ------n bw y o r k , j u i 30th, 1921**TM_________ _____*_ Ha U*!?]