SECTION 4 
DIGEST OF THE REPORT 
In the following paragraphs are given a digest and brief interpreta- 
ton of the statistical information presented in detail in Parts II and 
[11 of the report. Table I-I contains the percentages of the increases 
and decreases in the rates of production, accident frequency, accident 
severity, and accident fatality for the several industries and product 
groups into which the data were classified. This table is a composite 
tabulation of the accident and production performance of twenty in- 
dustries and sixty product groups based upon the exposure of over fifty 
billion man-hours. The respective performance of the several indus- 
trial groups is as follows: 
"NCREASES IN THE RATES OF PRODUCTION ACCOMPANIED BY DECREASES IN 
Bora THE AccIDENT FREQUENCY AND SEVERITY RATES 
Acids and Heavy Chemicals Iron and Steel 
Agricultural Implements [ron Mining 
By-product Coke Lumber 
Castings Newsprint 
Cement Paper Boxes 
Corrugated Cartons Paper, Pulp, and Paper 
Cotton and Woolen Fabrics Products 
Electric Light and Power Steam Railways—Freight Service 
Electric Railways Steam Railways—DPassenger 
Explosives Service 
Insecticides and Fertilizers Telephone and Telegraph 
[NCREASES IN THE RATES OF PRODUCTION ACCOMPANIED BY DECREASES 1N 
EITHER THE ACCIDENT FREQUENCY OR THE SEVERITY RATES 
Carpets and Rugs Marble Quarrying 
Cement-rock Quarrying Men’s Clothing 
Copper Mining Mineral Mining 
Furniture Nonmetallic Mining 
Granite Quarrying Quarrying 
Hardware Sheet-metal Products 
Hoisting and Conveying Machinery Slate Quarrying 
Lead and Zinc Mining Trap-rock Quarrying 
Machine Building and Metal Wire and Wire Products 
Working Wrapping Paper 
Machine Tools 
INCREASES IN THE RATES oF PRODUCTION ACCOMPANIED BY INCREASES IN THE 
ACCIDENT FREQUENCY AND SEVERITY RATES 
Gold, Silver, and Miscellaneous 
Mineral Mining 
Special Machinery 
Automobiles 
Beehive Coke 
Bituminous Coal Mining 
ys