DUTCH BOY WHITE - LEAD NATIONAL LEAD COMPANY Address: (See llst ofbraaches) Please send me yjour folder "Painting with White-Lead,*'giving specially prepared Instructions white-lead paint a| a jtfS.S This advertisement appears in'the following publications: Successful Farming, June,1932 ' Farm Journal, June, 1932 Hoard's Dairyman!

Lead Operations Due to the increased demand for lead.

Th brake blocks are made from & mixture of asbestos, rubber, resin, lead, etc.

Joseph Lead Company and Sub sidiaries

Williams in the same columns he uses to make an attack on lead.

The fourth paragraph makes the categorical statement that lead poisoning from anti-knock gasoline containing tetraethyl lead Is one of the most!

It is true that there are many industries in this country in which lead hazards are very well controlled.

In this work we have made use of two methods in parallel for the measurement of lead; (a) our chemical method which has been shown to give somewhat low analytical results, and (b) a spec* trographio method which is so sensitive that no question of negative error can be raised concerning it. (1).By these studies we have demonstrated that the daily handling of leaded gasoline with repeated and frequent skin contact, and that the frequent exposure as a result of spillage, fail to result in a measureable absorption of lead. (2).We have shown that garage mechanics exposed as long as twelve years to exhaust gases and to lead deposits in motors, do not show sufficient lead absorption to elevate their lead excretion or the lead content of their blood above that of groups of normal individuals.

Our studies were limited to the ingestion of lead by normal individuals by reason of the lead content of the food* and to the inhalation of -lead In certain industries* As a matter of fact it does not Clear up the subject* but merely opens it fori further examination* The question of what quantities of lead can be regularly absorbed by individuals without Injury is one which deserves a great deal of attention* It Is Impossible at this time to predict what the safe limits are* One merely known now that more lead is taken in by normal Individuals than was formerly believed* One also knows that this has been the case for a long time* The limits of safety in Industry have been tentatively established in relation to inhalation* This has no necessary bearing on the limits of safety by Ingestion* I must say* In order not to be misunder* stood, that I share the feeling of the Pure Food and Drugs Administration in Washington that it isnecessary to be extremely cautious in the matter of unnecessary and avoidable human exposure to lead compounds* There may be good reason for going carefully on the questions of tolerance in the case of food material* particularly where in some Instances lead compounds are very difficult to avoid* X must confess X see no reason for liberality in relation to such relatively un necessary articles as cosmetics* % see no excuse for permitting even a question of safety to exist in connection with materials of this type* You may be interested in knowing that we are planning a fairly thorough-going Investigation of the limits of safety In lead Ingestion with food material* We hope thereby u N 6045 Leary to shed some direct and clear light on this question* Very truly yours, RAKsis Robert ft* kehoeV 10)7

.< "ihilij ihiiuf to STAND mu WfiATHER' 4 \* srr* iHhutt\uj K/i/^lot/, j S'. 1 \ JXXP Sf-; , . . and Just think NOW PURE WHITE-LEAD PAINT FREE : Send coupon for folder, " Painting with White-Lead" which telis'howjtlo mix pure white-lead-, paint from ..Dutch;1 Bdy iSoit paste White-: Lead.

DUTCH BOY WHITE -LEAD NATIONAL LEAD COMPANY 111 Broadway, New York; US Oak Sc., Buf falo; 900 "W. 18chSt., Chicago; 659 Freeraaa AVe., Cmctaaati; 820 West Superior Avenue, Cleveland; 722 Cheswuc St., Sc. louts; 2240 24th Sr., San Francisco; National-Boston Lead Cp., SOd Albany St., Bostoo; National Lead &OilCo.

In the removal of the bars from the machine, reapplying lead and insert ing them in the machine again, and in short- in handling the bars during my work, getting lead on my hands was almost unavoidable.

All your painter needs is Dutch Boy White-Lead and its special com panion product...Dutch Boy Lead Mixing Oil.

" Lead Pound 0*32 gs* Lead in mgs* per gram of ash 0*05 The absence of lead in the urine indicates the lack of recent appreciable lead exposure* The findings in the faeces are at the lower level of normal results* Thus the lead analyses do not indicate any evidence of oecupational lead exposure* .

sateiy three ial-lli.3raas of * lead per ton cubic meters of air has been substantially established as the threshold of toxicity of inhaled lead.