Although this hook is not concerned with the toxicology of lead or industrial health exposures, it contains much valuable information on the production and uses of lead and its compounds.

tie# of lead il a cool ear hielding at erielhg^jfeirt#.

Whitson, National Lead Company, 111 Broadway, New York 6, New York Toy Manufacturers Mr.

`Turnbull, Cheaicel Engineer for the Canpacy *e Buston lead division, ond re lated to a process for preparing lead silicate plgRient by reacting silicate vlth a basic lead ecetate solution.

Is that the mask might be flooded and might, therefore, become quite inactive in taking tetraethyl lead out of the air.

Hudson Lead in Air Analysis c.R.

/. / / LEAD INDUSTRIES ASSO CI ATI O N SQ EAST 42ND STREET ' New York 17, N.

Kettering Laboratory University of Cincinnati Eden and Bethesda Avenues Cincinnati 19, Ohio Dear Bob: Thanks mightily for your comment on the tetraethyl lead manuscript.

LIA09673 ] a t t LEAD INDUSTRIES ASSOCIATION 'i 4N uatmroH avmuc * NS%( TSM IT.

Raw Materials Leaded Zinc.

On my r etu r n t o A u st r alia I hope t o be ab le to un dertake some epidem iological and c l in ic a l st u d ie s on our lead miners and oth er workers with an in d u st r ia l lead exposure* I am lookin g forw ard to meeting you per son ally on th e occasion o f my next v i s i t to th e United St a t e s.

`Turnbull, Cheaicel Engineer for the Canpacy *e Buston lead division, ond re lated to a process for preparing lead silicate plgRient by reacting silicate vlth a basic lead ecetate solution.

The thing we have been most fearful of, in dealing with situations In which men might be exposed to high concentrations of tetraethyl lead, particularly in association with gasoline vapors, Is that the mask might be flooded and might, therefore, become quite inactive in taking tetraethyl lead out of the air.

tie# of lead il a cool ear hielding at erielhg^jfeirt#.

Raw Materials Leaded Zinc.