Wo have had several requests for approval of your chemical cartridge respirator and fume and smoke mask for use in working in atmosphere contain ing lead tetraothyl* In looking over your folder describing these masks, we find no reference to the types of cartridges available or to the cartridge which you recommend for use in organic vapors* If you will forward us one of your respirators and smoke masks with cartridges for organic vapors^for lead tetraethyl, we will be pleased to examine them and answer the Inquiries that now are pending.

NATIONAL LEAD COI 111 Broadway.

CHILD it | v , ^ 'v Sear Sir: In planning the preparation of a popular folder on the Prevention of Lead Poisoning in Children, it occurred to me that it would be interesting and enlightening to get some estimate ae to the extent of known lead poisoning among chil dren in this country.

At the present time the Willson Company has no cartridge which they will recommend as pro tection against lead tetraethyl vapors.

oi Repeated bodily contact with the liquid Aroolor a may lead to an aone-fora Aim eruption.

Kehoe: Have you by any chance published the paper which you presented at the Spring meeting of the American Chemical Society, relating to the lead ex creted by normal subjects and the source of the lead which is absorbed?

#25 00 For IS analyses for lead on blood, urine and feces at actual cost of 5.00 per analysis . , .

At the present time the Willson Company has no cartridge which they will recommend as pro tection against lead tetraethyl vapors.

,'lead-line.

The threshold figure of 0.15 milligram per cubic meter is given for lead dust, presumably litharge and white lead, or othei soluble lead salts.

He examined the man's gams, had tests made of the urine for lead and found no traces.

The other refers to the extent to which lead compounds will accumulate in the material of which the hose is fabricated.

., re la tin g to the seemingly steady d e c r e e in th e f e r t i l i t y , of American women, which i s causing a l l e g e d deorea: b irth rate*0 : -i -v cf ; ,yc "r:'J I d0 n o t have to p re se n t any argument to th e members of yoesteemed s o c ie ty to deraonatrate th e cum ulative o f fo o ts o f lead poise: g e n e ra lly . / : l o r do I have to p re se n t any argument th a t lead vapor coming put o f th e exhausts of m illio n s o f motor v eh icle e n g in e s on oru highways a t th is tim e, due td the use o f lead dopes in fu els* is nothi. more or. l e s s th a n d e lib e ra te w holesale poisoning o f th e American peifor th e s e lfis h p r o fit o f thehtwo m onopolistic corporations fo rc in g a s it u a t io n onto t h e American p eo p le, .ontjr.-.

How long used in leaded gasoline storage?

A considerable number of such cases were directed to the C lin ic , particu la rly cases of lead poisoning, and contact was made with the industries from which they came.