This is equivalent to about Riga* of lead for every 10 cu.m* (cubic meters) of effluent.

Label all paints which contain more than 1% lead in their non-volatile con tent.

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

jVcHj Outside Dia.niv.tern National Lead Company'* lead pipe now. .. cornea in new.

This is equivalent to about j 6 mgm. of lead for every 10 cu.m* (cubic meters) of effluent.

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

It is the ade quate use of pure red-lead.

f tetraethyl lead jwith the air stream.

With regard to the lead, you have already had more exposure to lead than is good for you, and it is in the interest of your own health that you be more careful on your job about the amount of lead that you breath, and also be careful not to get lead dust on your hand3 and'food at times when you are eating.

The question boils down to: Vihat is the diurnal output of lead not in terms of concentration but in terms of total lead excreted?

Some of them are far sore toxic than lead.

Most often it involves the use of solder in body manufacture and lead oxide in battery manufacture. .

LEAD No lead xsonitoring was conducted during the fourth quarter.

Anna K. laetjer, So. i). assistant Professor Physiological Hygiene of lead, in their lied tetraethyl lead 2f any manner in which such, and therefore the hypothetical Dline containing not yl lead per gallon of batteries at service of lead exposure.

The Significance of Lead in the Glazed Surface of Ceramic Ware from the Standpoint of The Public Health Introduction Origin of the present investigation - Two cases of lead poisoning derived from the use of a specific set of ceramic ware.