1 docks.

H. 3.

'l l u ^ y a . ] PLAINTIFF'S The gTew England tore XKI3IT # |foumal of Medicinei formahoi ERRHStaUkha* uuuutte raw araura jocuax. or rameira m nraour VOLUME3M Original Articles Faauiy Kanagaaanc in tba Pnawaion af Eaacarbarioaa of Sehaophrsnki A Coacrotlad Study......................................

734 ASBESTOS ASBESTOS Th* word OAlrtin* la * l.mad term applied in a numlrr of Mirons mineral mUratr* which differ in chemical competition.

WSC WELD-O-GLASS An asbestos substitute made trom 100% fiber glass yarn that meets OSHA and NIOSHA requirements and yet handles all your HOT PROBLEMS.

Hoffman Specially Co., Inc, Specialties, Heating TYPICAL INSTALLATIONS HOFFMAN "CONTROLLED HEAT" EQUIPMENT ORV (CHAN GRADMGOOW FltttlOOUR ALLOWANCE GRADE OF MAM SUPPLY MAM SUPPLY TO prs It CAPACITIES LOOP CAPACITY Ante an I'mc i>U MniiA IDJTxjk CMKCTB* sat 000 N*t 5500 WJ 7600 m* 15000 4' 4 50 50 !'

Air System Equipment Registers Grilles Hart & Cooley Manufacturing Co.

-------------------------------------------------------------------- Heating Systems specialties j" _ Yarnall-Waring Company Manufacturers of Steam Specialties 7600 Queen Street, Philadelphia 18, Pa.

J 4 SUPEREX Specification Data I Density (dry) 24 lbs per eu ft Transverse Strength 100 psi (modulus of rupture) l Compressive Strength 85 psi to produce Vi" compression in 2" thickness I Linear Shrinkage (after 24 hr soaking heat at indicated temperature) 2.7% at 1900F Maximum Service Temperature 1900F 'The figures given In this table are average values obtained In accord' ance with accepted test methods.

HOW CAN WE CHECK CURRENT-TRANSFORMER SECONDARIES?

POWER PIBECTOBT PQR MODiaWIZATIOM-- Hi 1 Raatar Carp, 1408 S led St, St Laub 4.

Industrial Hygiene Digest October, I960 patient department of the Toronto Western Hospital more than 60% were due to arterio sclerotic heart disease.

Asbestos: Wonder Mineral or Silent Killer Asbestos, dubbed the wonder mineral, has been incorporated into building products since the late 1800's.

October 13, 1871 rarcus U.

SIR CHARLES GAIRDNER HOSPITAL THE <3UI;KN EUZADPTIi H MEDICAL CENTttE WOHANOS.