Document x1Y16MDwKqjGdLr3ELdBkKXrb

cf Industrial 5U*r- ens - 12. ion Material Is the tuna. O.H. Robertson. Pi7siol. Sev., t ZL 112-29 (January, 15-11) . author rerie-vs tia modes of entrance, 41strlbutlcn end dispesiticc Tcs mater-ia--l 1- tie re- spira---t--o-----r-y tract. R----i--r---s-1 t, thef progress - ^-------------------- ' "#f--or~eigon- />-3 tie luunngg lafl impeded by tie slraous course of tie nasal passages, tie atio0x7 n-u=cc=u-_s3 c-iaractcr of tie surfaces, action of tie cilia of tic membrane and tia eo'idi reflex. Disposition of tie notarial that iaa entered tie terminal respir atory cits is leaa simple. Tie principal aathed i by phagocytosis by amebic calls, the type of call onplcyed depending upon tie character of tie foreign >attcr. Bacteria such as tie pneuaococcus aro handled`by tia polymorphonuclear leucocytes, wiicb appear in great cumbers. Severer, with mineral dusts, ths _____________1 _ .tia. 4 V. .-- . __ 1 _ . _ . _ -- V Ml. J. rS^Cw-"' U39U6< we-wa ytwvea* 49 lUViQwab W441 <JU atwU'. of tic large sine of tic dust fiber. Macrophages eec-nulate around tie fibar and form giant calls in riici tie so-called asbestoaia bodies appear. Inasmuch aj tie lung appears to act as a filter for foreign material injected intraven ously, it has been suggested that tie pulmonary capillary cndothali'ne carriaa on phagocytic activity. Tin eridence, however, is to tia contrary. Tie sane is true of tie cells lining tia trachec-bronchial tree. A bibliography of 125 re ferences is included. * Asbestosls in Grinders and Drillers cf Brake Bands. Srachnam. Arbeitsschutn, p. 172-4 liSlj) . I urernanj Brahe bands arc nads of shoots of asbestos, or are pressed out of asbestos weote products and a filler, impregnated with artificial resin. Afterwards the bands end plates ere gro'.md and drilled. In Saxony ell workers in asbestos pinrts must bo examined annually. Clinical and x-ray examination of the grind er i , drillers and nan who file individual pieces has shown a few light cases of sbestesis after 2 years' worn, and in nearly all such srerxers after 2 yoor3 iploynem Tis Struggle Anainst Asbestosls Today. Zhriardt. Arbeitsschutr. pp. 191-3 (1342). (German). The paper is a brief description of asbestosls, rather than an account of tie struggle against it. Tie author states that no relationship wns found between nasal dust filtering ability and degree of asbestosls. 2i2 Methods cf Avoiding the Dust Dancer in Asbestos Plants, Valid frog August 1, iuU' Anonymous. Arboitsschutn. pp. 2S3-5-(1940). (German). Tio new regulations concerning exhaust systems, established by tic manufacturers, insurance association and Gorsnm factory inspactcra, are described. The afficioncy tia systems must be tested by a representative of tia insurance ^sociation. *Q ^dduietjen to Cb-^* the Regulation Regarding Manufacture of Glass, Grinding, --:^iuu, Taintlm. Glass Containers end Related Industries, Dated Seotenher 13, Anonym us. Arbeits3chutz, p. 2B2 (1940). (Gamcn). ~*e German regulations prescribe that x-ray examinations be made of all woriars ployed at certain Jobs in rooms where glas3 containers or refractory materials Produced or where sandblasting is conducted. Tic exaninations are repeated *c*.' second your. All persona engaged in producing lead-ccatcinlng Mixtures ~ 'using lead colors are to be examined at lacst every 6 months. PLAINTIFFS EXHIBIT WV-Q'2.m PLAINTIFFS || EXHIBIT 3l<%t.U(jr) A*"