Winter convection current Fig. 8.

Heating Systems Boilers, Cast-Iron R A D I AT Member DEC.

/* , Total pi)^ V CL DATES 1930-1934 1935- 1939 0 1940-1944 ( 1945-1949 1950- 1954 c 1955-1959 r 1960- 1964 t 1965-1969 1970-1974 NUMBER OF YEARS EXPOSED TO RISK BY DATE AND AGE 15-24 25-34 3 5-44 45-54 55-64 65-74 75-84 85+ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.3 7.1 2. 1 0. 0 0. 0 0.0 0.0 0.0 40.9 18.3 16.0 7.3 0.0 0.0 0-0 0.0 62. 2 121.0 43.2 2 9.4 10.9 0.0 0.0 0.0 7.8 194.8 65.6 54.2 20.8 0.0 0.0 0.0 0.0 89.8 155.3 55.2 26.0 7.9 0.0 0.0 0.0 7.9 194.9 61. 2 54. 2 6.4 0.0 0.0 0.0 0.0 77.8 113.8 40.7 14.2 0.0 0.0 TOTAL 113. 2 438. 7 555. 0 321.1 152.6 % 28.4 ( CODE DOW EXP U-S.

September 3, 1937 THE DOW CHEMICAL COMPANY MIDLAND.

USS CORPORATE LEVEL ENVIRONMENTAL HEALTH: -first industrial hygienist and served as Director of Environmental Health - Kenneth Morse *INDUSTRIAL HYGIENISTS: a.

4 ; (> 12 !

i to&'D CERTIFIED HAIL: `PCE!

Zouolife Gets Expert Opinion ...

T tT U ti ANALYSES OF nrriC M SCALE D IC m .O PO AN IM *"E Monsanto MONSANTO COMPANY / DAYTON LABORATORY / DAYTON, OHIO 45407 ESC/PAYTON____ (Depar tient/Section) .

FILE NAME: Concrete (CONC) DATE: 1939 Apr DOC#: CONC004 DOCUMENT DESCRIPTION: Journal Article - Dust-Collecting Systems Charter Member CEMENT MILL SECTION of Associated Business Papers C o n c r e t e , with which has been com bined Cement Age, New York, and Concrete Engineering, Cleveland, is devoted to the Proper Use of Concrete and the Manufacture of Cement.

FILE NAME: General Electric (GE) DATE: 1931 Jan 6 DOC#: GE116 DOCUMENT DESCRIPTION: Letter to Mr.

FILE NAME: General Electric (GE) DATE: 1932 Dec 3 DOC#: GE146 DOCUMENT DESCRIPTION: Letter to Mr.

FILE NAME: General Electric (GE) DATE: 1933 Dec 19 DOC#: GE002 DOCUMENT DESCRIPTION: Letter from GE to Harvard School of Public Health GERARD SW OPE P R ESID EN T / V GENERAL m ELECTRIC COMPANY GENERAL ELECTRIC BUILDING 570 LEXINGTON AVE.

FILE NAME: General Electric (GE) DATE: 1935 Apr 1 DOC#: GE039 DOCUMENT DESCRIPTION: Internal Report - Industrial Aspects of the Silicosis Problem with Cover Letter MAIN s o is OFFICE ANO FACTORY C H IC A G O ja c m s o n bo ulevard GENERAI 6.28.02*054599 e le c t r ' X -R A Y CORPORATION B R A N C H O F F I C E S IN A L L P R I N C I P A L C I T I E S CABLE AOORESS VICTOftXRAV CHICAGO CHICAGO April 1, 1935 <* North.

FILE NAME: DuPont (DUP) DATE: 1935 Sept DOC#: DUP080 DOCUMENT DESCRIPTION: Journal Article - No HalfWay Measures in Dust Control - National Safety News P-N SC -36 ; National Safety News Published monthly in the interest of accident prevention and the health of industrial workers i;