German factory physicians had long been warning against the dangers of dust inhalation: by the end of the nineteenth century, for example, there were already concerns about sanding and inhal ing lead-based paint, and awareness of silicosis--caused by inhala tion of very fine particles of quartz--followed shortly thereafter.

Above temperatures from 95 to 100 F (probably that of the average outside surface of the clothed body) radiation and convection combined changes from positive to negative, and slightly above this temperature even the greatly increased latent heat loss ceases to suffice to take care of the rate of heat production and the negative In a cold environment, where environmental conditions are such as to remove heat too rapidly, the organism adapts in some degree by con stricting the blood vessels leading to the surface, thereby reducing the blood flow and heat available for dissipation to the environmental sur roundings.

Mr* Beeves reported that no word had baen received as yst from tho Bavy Department regarding oar application for the irny-Bavy B award* Mr* Rockwell stated that while several of the plants of tho Bational Lead Company have received this award, no grsat effort on the part of tho majority has been mads to secure it.

rhii,turbine, one of the largest industrial units in the Jwesi,' was recently installed by a leading paper mill, ^decision of mill officials to lubricate the new turbine h^foNPARgiL Turbine Oil was baaed on .their own wrlence with this outstanding product lining in 1941 In ono unit/NoNPAntn, has since jft^put Into additional turbines; ond, today, it lubrlffif.xll turbines in this big mill.

If it is attempted to remove heavy dust such as lead oxides by an over head hood the conditions may be worse than if no exhaust were used at all, owing to the rising air current carrying the dust up through the 727

In, drying calculations the dry basis is usually preferred because small variations in initial moisture content expressed on a wet basis can lead to serious errors.

Germany's leading medical jour nals reported at length on the conference, and Hitler sent a tele gram wishing those assembled "best of luck in your work to free humanity from one of its most dangerous poisons" (see figs. 6.126.14).

Lead poisoning: a.

PaTTV extension being provided with a side connection or Y leading to the interferometer,;' The result obtained with the Willson apparatus was 101.6 p.p.m. carbon tetraf chloride.

Cold-drawn ptpv. breta, copper, lead New ttcl pip* New cait-lron ptpa a.ooos too.ooso 0.003 toO.Oil o.oartoo.oo How to Determine Reliable Air-Flow Data for Design of Duct Systems To overcome wide disagreements between air-pressure drops as found on test and as predicted in handbooks.

They do not suggest that any of these men has absorbed any significant quantity of lead in the conduct of his work.

You and he will recognize that I spend time, while here at the Laboratory, on the problems of the lead area.

Construction The ducts leading from the hoods to the exhaust fan should be con structed of sheet metal not lighter than is shown in Table 5.

| i, 1*41 white-lead eoateat antet ha earhoaate laeteed at sulphate ar laaded siae aa ah present, a ad that aaa at thaaa epaeiflaatlons will aall far twist tha awauat af fltaaex* Tha regular weekly report af shipments far the watt andlag January $ t> suhnlttad The purahaee af a 1*41 cha-rrolat Tawa sedan far the aaa af eur wanegar af raw waterial sales, Mr* Walter Merria, at a a at aaat net ta exceed <313.00 inelading the Jrudein f the aid ear, waa appeared aad forwarded ta Saw fork far their attention la the regular way* Thera heHag aa farther tusinees, upon watiaa tha meeting adjourned# NL 000041108

Aprilf 1947 M-P 4 More .Companies Join Foundation Thirteen organizations have affiliated with the Foundation since the first of this year, including some of the nation's leading industrial concerns.