''Particularly, Eagle-Picher research has developed special pigments known as basic lead sulphate, leaded zinc oxide and blue lead which Eagle-Picher manufactures from its own raw materials 1 5 REPRODUCED AT THE NATIONAL ARCHIVES and sells in competition with pigments manufactured from pig lead.

Lead free pigments .should be used rberever possible.

The airborne lead concentration was 4*33 milligrams W pmT per cubic meter; this exceeded the threshold limit of 0*2 milligrams; ** 2* A borderline health hazard may exist at mixer No.l when the batch material is discharged to the-cart* An increase in the inward draft on the hood is indicated* Airborne lead concentrations during dumping from blender to hairnnermi.il No.l indicates a borderline health hazard may exist* 4* The exposure to airborne lead during lead handling on line No*2 and weighing is not considered a health hazard* Batch weighing and blender loading did not produce excessive airborne lead on the Dry Line* Rolling: 5* Minimal concentrations of airborne lead existed at the rolling machines except backing machine No.6* At the rolling position the airborne lead level was 0*16 milligrams per cubic meter* Strip Finishing: 6.

This Interrogatory is overly broad, unduly burdensome and seeks information which is neither relevant nor likely to lead to the discovery of admissible evidence.

opinion that too toxicity of load tetra ethyl was caused partly by 5M--*<i'v-*f\,2,,~A - ths tv^ouai as a whole and oould not ho ascribed entirely to lead ^ki' poisoning, especially in view of each symptom* as Insomnia and JBe&t&l eanltoment* Sat in view of the foot that little lias been known heretofore conaeraing eoute lead poisoning* and sinoo all the symp toms deaoribed have been previously described as occurring in eases of ehranie load poisoning, we are inclined to the opinion that the * toxin offects of lead tetra ethyl are sluply a manifestation of aonte lead poisoning* Shua Osier, (Principles and imotioo of Vedioine, Hlnth Edition, pum 394) says. .

The inorganic lead values ranged from 0.007 to 0.148 mg/m3 and the organic lead levels from 0.002 to 0.016 mg/m3.

Aside 3 EXTERIOR PRODUCTS irom the lead and .zinc pigments that have always been considered as the proper bases for outside paint, this product carries just the proper amount of titanated pigments to pro duce the utmost in opacity.

After much debate the standard for airborne lead has been finally set by the Environmental Protection Agency at a quarterly average of 1.5 ng/m:*.

This m ethod determ ines to ta l lead in the urine.

Defendant objects on the grounds that this request is harassing and not reasonably 2 calculated to lead to the discovery o f admissible evidence.

Moreover, defendant Riley Stoker Corporation objects to any request which is not reasonably calculated to lead to the discovery of admissible evidence.

V, llovcnbor 23. 1963 SU3JECT; 1964 a/EET'S CATALOO REFRIKT3 To Mecbcr of the Load Industries Association, Inc.t We are enclosing the following four reprints I Sheet Lead for ltolsture Protection Lead Plunking Lead to Control Sound and Vibration Lead for Modem Design which will appear in the 1961, Sweet's Catalogs as detailed belowt SWnbT'S AP.CHlihC'nJP.AL CATALOG - estinated distribution to 20,000 architects Sheet Lead for Moisture Protection Lead Plunking Load to Control Sound and Vibration Q SWEET'S D.TXJSTRIAL CO'ISTCPCTIOK CATALOG - estinated distribution to 14,000 individuals and cocpanies in the industrial construction field.

V, llovcnbor 23. 1963 SU3JECT; 1964 a/EET'S CATALOO REFRIKT3 To Mecbcr of the Load Industries Association, Inc.t We are enclosing the following four reprints I Sheet Lead for ltolsture Protection Lead Plunking Lead to Control Sound and Vibration Lead for Modem Design which will appear in the 1961, Sweet's Catalogs as detailed belowt SWnbT'S AP.CHlihC'nJP.AL CATALOG - estinated distribution to 20,000 architects Sheet Lead for Moisture Protection Lead Plunking Load to Control Sound and Vibration Q SWEET'S D.TXJSTRIAL CO'ISTCPCTIOK CATALOG - estinated distribution to 14,000 individuals and cocpanies in the industrial construction field.

PLAINTIFF'S EXHIBIT COMMONWEALTH OF MASSACHUSETTS MIDDLESEX, SS.

Lead Department..............................................................