r 4 Cyprus Industrial Minerals Company Interoffice Correspondence ^ u tTf ts EXHIBIT CAM-339 fo Manos Tiritas F'om i.H, Reads Date May 15, 1989 Duncan River Grit Deposit On 5/19, Jay Mooney and I visited a grit deposit located 26.4 Km north of Cooper Creek, British Columbia on the east side of Duncan River (Exhibit I). ' The ore crops out for about 215 feet along the dirt road with a strike of N 60 W and a dip near vertical (Exhibit II).

CAM-360 CPC-SEWELLTRSCPT00000288 CPC-SEWELLTRSCPT00000289

Thom pson-H ayw ard C hem ical Company P .

CAM-368

Confidentiality Custodian DocumentType Y Legacy 1 Physical JNJ000270495 Metadata ORIGINAL ORIGINAL ORIGINAL CAM-389 EXHI~I~ 11 , WIT: DATE: W~~4~-' C.

V ; `V ." i ^ f w o c o ) .

TALC ANALYSIS (ASBESTOS) PRODUCT NUMBER PRODUCT ORIGIN DATE /7 A y ^9/ CA ^ J y / 9 ?

7881 Calculation of Number asbestos fibers per oz U0654 #fibers counted 1 EFA mm2 1256 #GO 10 GO Area mm2 0.013 Vol Filt ml 1 Dry Wt grams 0.0959 Dry Wt oz* 0.0033828 Asb. fibers/oz Asb. fibers/oz 2.86E+08 286 Million U0655 4 1256 10 0.013 1 0.081 0.002857 1.35E+09 1.4 Billion U1986 3 1256 10 0.013 0.1 0.20567 0.007255 4.00E+09 4.0 Billion * 28.34952 grams per oz Number fibers per oz = (# fibers-cted*EFA*100ml)/(#GO*GO Area*Vol filted*Dry wt) EFA = Effective Area of the filter GO =Grid Opening ~112\ ^ |l7|l PLAINTIFFS EXHIBIT WCD-358

BABY PRODUCTS COMPANY RETURN RECEIPT REQUESTE R A R IT A N .

*1 X, th .i 28 June 1971 TO: Mr.

*IV 22 * JAMA.

EXeCUTW SCRETARfAT Food and Drug A d -v ris tra tio n T A/fri!

234 GNTER OBERDRSTER TABLE 1 M easured and Norm alized Lung Talc Burden of Rats at the End o f the 4 -Week Inhalation Study o f Talc Exposure concentrations, mg/m3 0 Control 2 (target) 2.3 (actual) 6 (target) 4.3 (actual) 18 (target) ' 17 (actual) Male n tig talc/lung (from NTP report) fig talc/lung per mg/m3exposure concn (% increase over low concn) Female n tig talc/lung fig talc/lung per mg/m3exposure concn (% increase over low concn) 5 4.3 1.6 -- 5 0.58 0.24 -- 5 81.6 2.1 35.5 4 56.5 1.6 24.6 5 186.0 9.3 43.3 (+22%) 5 127.2 9.3 29.6 (+20%) 5 846.0 + 5.5 49.8 (+40%) 5 546.0 35.2 32.1 (+30%) clearance m echanisms, and evidence has been accum u lating th a t these effects are toxicological im plications of a condition of lung "particle overload" (M orrow, 1988).

. 1968 American Industrial Hygiene Association Journal 353 The aluminum and silicas were in all prob ability associated either with the talc mole cule, or additives such as kaolin, or the base material from which the talc was derived. 22 ru .

The Detection of Quartz in Talc by Differential Thermal Analysis Principle Differential thermal analysis (DTA) involves the measurement of thermal reactions which are induced in a sample as it is being heated at a constant rate.