Year and industry 
Average 
men 
working 
daily 
Days 
Active 
Man- 
days 
worked 
(thou- 
sands) 
Man- 
hours 
worked 
(thou- 
sands) 
Number of Injury rates per 
injuries million maa-hours 
  
Fatal Non- Fre- Severity fatal quency 
 
1966: 
 
 
 
 
 
 
Coal                      
80 
229 
18 
146 
4 
27.37 609 
Peat                     
28 
136 
4 
31 
 
 
Metal                   Nonmetal                 
409 
173 
284 
141 
116 
24 
932 
200 
 1 56 -- -- 4 
61.14 13,67919.96 514 
Sand and gravel            
Stone                     
 
 Total 1                 1967: P 
1,497 
1,120 
198 
194 
296 
217 
2,393 
1,748 
53 
29 
22.14 65316.59 600 
 
3,307 
204 
676 
5,450 
1 146 
26.97 2,854 
 
 
 
 
 
 
 
Coal                      
70 
229 
16 
128 
3 
23.44 516 
Peat                     
Metal                    
Nonmetal                 
30 
370 
130 
192 
211 
107 
6 
78 
14 
47 
624 
111 
1 
34 
4 
21.30 2,13054.46 1,45136.12 740 
Sand and gravel            Stone                     
 
Total 1                     
1,565 
1,270 
201 
197 
315 
250 
2,546 
2,007 
63 
29 
24.74 1,20514.45 524 
 
3,435 
198 
679 
5,463 
134 
24.53 965 
P Preliminary. - 
' Data may not add to totals shown because of independent rounding. 
 THE MINERAL INDUSTRY OF WASHINGTON 835 
 
Table 5.—Employment and injury experience in the mineral industries

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
percent in Washington compared with an 1 1-percent gain in the United States.
Construction activity increased substantially, 38.4 percent and 19.4 percent,
respectively, for the value of building permits and heavy engineering awards.
Factory payrolls were up almost 10 percent because of the gains in manufacturing
employment—a high-salary group. Employment in aerospace increased 16
percent to a 99,000 annual average; in December, the total was 105,300. The
Boeing Co. announced record $2.9 billion sales and a yearend backlog of $5.9
billion. Employment in the mineral industries group failed to maintain the
pace it had set the year 
before and by yearend 1967 the total of this group was about even with the
level of the prior period. Nonferrous metals, which had been bolstered by
new and expanded aluminum plants in 1966, experienced personnel reductions
and a labormanagement dispute which caused yearend totals to fall below 1966
levels. Despite the number of jobs added during the year, unemployment was
above 1966 levels through nearly all of 1967. According to the Washington
Employment Security Department, this was not an indication of any weakness,
but rather an indication of the rapid growth of the labor force. 
 
REVIEW BY MINERAL COMMODITIES 
 
NONMETALS 
 
 Abrasives.—Carborundum Co., Vancouver, continued manufacturing silicon
carbide for abrasive, chemical, and refractory purposes. Much of the abrasive-grade
material was shipped to grain-sizing and treatment plants in the Eastern
States for further processing into products suitable for use in bonded and
other types of abrasives; some was shipped to Western States for use in sandblasting.
Chemicalgrade silicon carbide was used by the steel and petroleum industries.
Refractory-grade crude silicon carbide was shipped to the 
company's Perth Amboy, N.J., refractory plant. 
 
 Barite.—Barite production from the Madsen quarry, by W.A. Madsen,
was sold to Northwest Talc & Magnesium Co., Clear Lake, for grinding.

 
 Cement.—Portland cement shipments, by four firms operating seven plants,
totaled 5.6 million barrels valued at $20.6 million. Cement was distributed
from the plants and seven distribution terminals to consumers in the State
(84 percent), and to other Pacific Northwest States and Alaska. Of the total
cement shipped, 75