SAFETY AND PRODUCTION 
Machine Building and Metal 
Working 
Mineral Mining 
Paper and Pulp 
Quarries 
Steam Railways 
The average annual percentages of increases and decreases in the 
accident frequency rates in terms of production are shown in Chart 38, 
10 20 
Explosives ________ __ _ TT 154% 
Acids and Heavy Chemicals... ___. 11.8% 
Hardware... ZZ 24 10.8% 
By-Product Coke_ ___ L.A 10.8% 
Cement ________ LIZZ) 8.2% 
Woodworking ___ _______. lL ZANTE 
Paperand Pulp_______ _____.___..... 7227 6.0% 
Castings... ZZA48% 
Boots and Shoes _ _ ZL) 4.4% 
Gas___.___.__.... ce ZA 85 
Steam Railways-Freight Service. ___._. [ZZ 3.6 % 
Automobiles ____. _____ | 2.8% 
Beehive Coke. . ____.__.. __.. Lh 
Machine Building & Metal Working ._... {4 1.9% 
Mineral Mining _ __. _ _A14% 
Electric Light and Power. _________... A 1.1% 
Steam Railways-Passenger Service. ._. 17.0% 
Quarries _______.. 0.7% 
Slectric Railways. .._._... 0.5% 
6.57% Fine Speciality Machines 
INCREASES 93%[C Textile 
97% Brass, Bronze and Copper Products 
11) 
CHART 38 AVERAGE ANNUAL DECREASES OR INCREASES IN ACCIDENT FREQUENCY 
IN TeErMS oF ProDUCTION FOR 22 MATOR INDUSTRIAL GROUPS 
for 22 major industrial groups. Nineteen experienced decreases in 
the rates and 3 had increases. 
The average annual percentages of increases and decreases in the 
accident severity rates in terms of production are shown in Chart 39, 
for 23 major industrial groups. Seventeen experienced decreases in 
the rates and 5 experienced increases. 
A comparison of the accident rates expressed in terms of produc- 
tion with those in terms of man-hours, both derived from the same