American Society of Heating and Ventilating Engineers Guide, 1928 Chapter XII--Industrial and Domestic Oil Heating The majority of the burners operate on the intermittent system but there are several that operate on a system known as the high-low where the burner is always burning but the flame intensity is varied to meet the temperature variation as indicated by the thermostat.

American Society of Heating and Ventilating Engineers Guide, 1929 blower and is used to aid in the atomization of the fuel, the balance being induced by the natural draft through openings in the refractory hearth of the combustion chamber.'

PLAINTIFF'S EXHIBIT Asbestos Abatement and Asbestos Containing Materials Management!

FILE NAME: National Safety Council (NSC) DATE: 1921 Sept DOC#: NSC049 DOCUMENT DESCRIPTION: Proceedings of the NSC 10th Annual Safety Congress National Safety Council 168 North Michigan Avenue, Chicago HONORARY MEMBERS Association of Iron and Steel Electrical Engineers.

AUTUMN .

T able 1.

4821 Easton Ave., St.

The Senior laapeeter of L'lnoc, ULiuid tcpartsent, smaozus* JVlfiOCfUS. 15th iepte^bcr, 1920.

248 CHAPTER 12 Col.

Heating Systems National - U.

PLAINTIFF'S EXHIBIT Industrial Hygiene Third Printing, June, 1925 3' r* zi cn W CH z 5> 5O0 o5>8< St*5 rQo H> K 2Z ns _ >z 5E -< w *--rw'V'JL-..

PLAINTIFF'S EXHIBITI MET-917 ttr.

90 OCCUPATIONAL TUMORS AND ALLIED DISEASES dated properly, if consideration is given to the fact that actually only 8 to io per cent of the men employed in such operations are markedly exposed to this agent (Teutschlaender).

TUMORS OF THE SKIN 249 the hope that by that time probably all of the early cases of professional roentgen-dermatitis had developed into malignancies and that for this reason this type of occupational neoplasia would cease to exist.

NO.