Moreover, lead has been employed in the treatment of cancer (Blair Bell et al), unsuccessfully I believe, despite a^few V. o i c c- suggestively beneficial effects,/partly because lead compounds are believed to be especially injurious to embryonic tissues, andk P<'V partly because of statistics (not very convincing), that indicate that workmen in lead trades have an unusually low incidence of cancer.

This is exactly what would be expected some days after the inhalation of a considerable quantity of lead.

It is a reasonable and almost certain conclusion that child contracted lead poisoning within his ovrn home from the toys or other sources, including surfaces painted with lead-containing paints.

The result is little more than nothing, beyond the well-known figure for the tolerable concentration of lead (without reference to any compound, or dimensions of particle, but presumably the worst compound, exclusive of the lead alkyls, and the most dangerous degree of dispersion).

Roosevelt..asked me to write him a letter calling attention to the fact that the lead industries Alien with apprehension any shipment of lead pigments in bags so that they could show this letter to any ssted party if further pressure should be put oh .

Bowell ) CITY* Strongsville, DPJRC SUBJECT* LEAD REMOVAL GLIDDEN-DURKEE Jan. 4# 1973 FOR* Mr.

> >0 Y_/ LEAD INDUSTRIES ASSOCIATION, INC. 1*1 MADIION AVINUI Hrf TO** IT, H.

/^7>3 NOTICE TO EMPLOYEES OF AMERICAN CYANAMID COMPANY - CHICAGO PLANT Your employer, American Cyanamid Company, has received an interim order which provides relief from the new 50/40 ug/100 g * blood-lead trigger levels for medical removal protection under the lead standard.

-rennlts of the analyses made on the blood and urine off' As you will note, the lead concentration in both blood and urine are at elevated levels that demonstrate that this man's occupational lead exposure was hazardous.

. , verslon lnto white lead takas place within the space of an, hour (but safely within as many hours as tho Dutoh process ' takes months.)

Box 50, Elkton Road Newark, DE 19714 SHORT-TERM STUDY PROTOCOL SHEET MR Number: 9682 Study Code: 467 Haskell Number: 20204 Descriptive Title of Study: In Vitro Simulation of Gastric Bioavailability of Lead- Contaminated Soil Test Substance: Lead-Contaminated Soil Lead Concentration in Soil: 1000 ppm Sponsoring Business Center: Du pont Environmental Remediation Services Address of Sponsor 300 Bellevue Parkway, Suite 390 Willmington, DE 19809-3722 Date of Sponsor's Approval: 7/1/93 Proposed Starting Date: July 1993 Proposed Completion Date: October 1993 Purpose of Study: To determine the amount of lead that leaches from soil under the simulated conditions of gastric digestion.

NATIONAL LEAD COMPANY ' 111 Broadway, New Yolrk; 116 Oak St., BttSalo; 900 W. 18th St., Ghicagb; 659 Freeman Ave., Cincinnati; 820 w.

Like you, I remember vividly trie unfortunate series of lead poisoning cases found in various Navy yards.

/^7>3 NOTICE TO EMPLOYEES OF AMERICAN CYANAMID COMPANY - CHICAGO PLANT Your employer, American Cyanamid Company, has received an interim order which provides relief from the new 50/40 ug/100 g * blood-lead trigger levels for medical removal protection under the lead standard.

Kehoe: IH-loO Effect of Particle Size on the Absorption of Lead in Humans LH-75 Hunan Exposure to Particulate Lead Compounds in the Air Under Experimental Conditions In looking over your recent report on LH-160 I note that the technique used to achieve the dispersion of 0.5 micron lead sesquioxiae particles is not mentioned.