The barium, sodium, potassium, lead aed nickel salts of the sulfonic acid have been prepared (6).

September 25, 1951. 0007-SWP-000123672 0007-SW P-040284 Glorious sunshine comes indoors AT LEADING PAINT, HARDWARE, LUMBER AND DEPARTMENT STORES EVERYWHERE Completely New Washable Wall Paint!

Bankline O il Company ,B aro id Sales D ivisio n {N ational Lead Company) /Bay R efining Corporation .B e ll O il fit Gas Company o f Delaware / B e ll Petroleum Company B elridge O il Conpany Bentex O il Corporation , Berry Asphalt Company Bethlehem Supply Conpany (Bethlehem S te e l Company) B ig C h ie f D r illin g Company , B ig Lake O il Conpany Bishop O il Conpany Blanco O il Conpany Bond O il Corporation- " Bovaird Supply Company, The ..

2 CHAPTER 1 1959 Guide ' at stated conditions, to the heat equivalent of the total input rate required to drive or operate the system, ort Air Conditioning: The process of treating air so as rol simultaneously its temperature, humidity, cleanliud distribution to meet the comfort requirements of .cupants of the conditioned space.

I^ck of proper evaluation, or improper installation may lead to unsatis Examples of the Use of Table 16 Example 3: Find the coefficient of transmission Ui of the frame wall shown as an example at the top of Table 5 wheo (a) a 2-inch blanket fibrous insulation is added between the studs and in contact with the gypsum lath and when (6) aiuminum-foil-backed gypsum lath is added.

FILE NAME: Grumman (GRU) DATE: 1958 Apr DOC#: GRU004 DOCUMENT DESCRIPTION: American Industrial Hygiene Association Journal with Asbestos Standard AMERICAN Industrial Hygiene A S S O C I A T I Journal Volume 19 APRIL 1958 Number 2 T he Control of a Lead Hazard in the Silversmithing I ndustry...................... 73 Leonard D.

the the 2700 stopes exhaust fan and joining with the by way of old worked other out Dust Counts The attached figures sppear to me to be i very high for the underground workings Whilst I do consider that attention could be given to improve the air circuit through the mine conditions underground were satisfactory and is evidenced by the wet and bulb temperstures Compressed water jete Hre supplied at the ore passes into which the ore is scraped During seventy five percent of the time I spent at the Colonial mine water was not available due to the main water pipe to the mine being broken This caused boring operations to be suspended but did not effect the scraping which continued irrespective of water being available or not With the instrument used for taking the sample of dust there is ' tendency particularly in a dusty atmos- phero for future sections of the glass slide to be poluted I feel then that the results obtained under these conditions for the dust samples are not a true indication of the dust content of the air Trestmont Plant Little visible improvement was evident to the external appearance of the treatment plent However much is being attempted in an endeavour to improve the dust collection That suction of the pl^,ntwhich includes the Rolla Kubit brosker and screena has been totally enclosed and fitted with exhaust ducts which connect to ducting leading to a Rotoclone dust collector This dust collection appeara satisfactory Another Rotoclone unit is installed but sa yet has not been permamently connected to the roof discharge from the fibre collecting cyclones An inadequate supply of power was given a one reason When connected @ greet improvement is expected Foundations for a third Rotoclone dust collector have been commenced It is anticipated this will exhaus dust crested at the crushing units inside the plant building Plens h^,ve been prepared for the construction of a new treatment plant st the Colonial mine Bulldozers were in operatio levelling out fill for the foundation for the site The high cle- vation of the entrance to the mine on the gorge fuce and the f^,ll into the velley of the gorge should assist in the plant layout Th first construction anticipated is the instelletion of a conveyor belt in the lower tunnel to convey the ore from the mine bin to a jew crusher thence to a Symmons crusher and to a storage bin The ore will be carted by trucks from this bin to the treatment plant i Wittenoom gorge whilst the remeinder of the plant is constructed General At present the fibre being recovered is in the vicinity of 1000 tons per four weekly period and tala from the treatment of 17,000 tons of ore It is envisaged that a tonnage of 40,000 tons of ore per four weekly period will be si^ ...

Soft metals such as lead and brass improve wear while carbon t, and graphite serve as friction modifiers.

LIQUID RED LEAD (Modified)............ . 8.00 8.10 ................................

-*t*r-H**4r l.bor Torcmmn 4 Hr*# 2.7$ Jouraeyman 8 Hr*# Q- 2*50 P fo* 7*55' payroll tax *od Im Kntal of Arc I of c v*acl>l* & lead* comp freight 11.00 20.00 AMOUNT 31.00 2.34 67.92 44.22 145.48 17.45 162,03 16.20 179.22 79.07 258.20 t I ASARCO ELP 0007691 A9UEHED (804^ J.

Access doors of convenient size should be provided in the sheet-metal connections leading to and from the filters. 4.

Knox (1955) is, on the whole, of the opinion that the epithelial changes leading to carcinoma arise from: (i) chronic irritation leading to increased thickening and compression of the alveolar walls and (ii) subsequent slow disintegration of the asbestosis bodies with liberation of something which, acting on the already abnormal epithelium, induces malig nancy.

The discovery of many asbestiform amphibole fibers in the tailings and Western Lake Superior water lead to concern over fiber concentrations in municipal water supplies using this water.

Knox (1955) is, on the whole, of the opinion that the epithelial changes leading to carcinoma arise from: (i) chronic irritation leading to increased thickening and compression of the alveolar walls and (ii) subsequent slow disintegration of the asbestosis bodies with liberation of something which, acting on the already abnormal epithelium, induces malig nancy.

Knox (1955) is, on the whole, of the opinion that the epithelial changes leading to carcinoma arise from: (i) chronic irritation leading to increased thickening and compression of the alveolar walls and (ii) subsequent slow disintegration of the asbestosis bodies with liberation of something which, acting on the already abnormal epithelium, induces malig nancy.