508 INDUSTRIAL HYGIENE AND OCCUPATIONAL MEDICINE of the dust to be picked up in bursts rather than in a smooth, continuous fashion.7 It also prevented "caking" on the walls surrounding the Venturi jet.

SJOBERG--VANADIUM PENTOXIDE-HEALTH HAZARDS 635 Respiratory Tract.

110 ASBESTOS EXPOSURE-SELIKOFF ET AL Table 5.

1 16th, 1941, addressed to Mr.

1 may have come to your attention in the 1940s?

1 Okay.

FLIEKiCO and INSTALLATION DATA Issued by Plibrieo Jointless Firebrick Co^ Chicago, III.

..e Kaylo Oc.t. 10, 1947 Memo to: Dr.

NEG.NO.

(3) COPY Motropolitnn Lifo Ins.

( CSCC14TIVC o'*cc* KjEASBEY &.

INSULATING SNEETROC.K BRIEF HISTORY A few years ago, foil insulation was unknown-in this country.

ASPHALT ROOFING SHINGLES AND ASBESTOS SIDING New sample plan -- Effective Feb. 15,1942 For many years the roofing and siding industry has suffered from a serious misuse and abuse of samples.

Revlsad July, 1945 ORTHO-NITHOBIPHBNYL (Ortho-hltrodlphenyl) A3 A PLASTICIZER DEVELOPMENT DEPARTMENT ORGANIC CHEMICALS DIVISION MONSANTO CHEMICAL COMPANY ST..LOUIS, MISSOURI 061*270 TOWOLDMONOQ38442 WATER_PCB-00022911 OR'l'HO-NITROBIPHBim, INTRODUCTION Ortho-Nitroblphenyl, formerly sold as OrthoNltrodiphenyl, Is a good general purpose plasticizer.

\\ -91 06:14PM PHK&S MORRISTOWN P 0 3/0 8 FFREY M.