TABLE 36.—Comparative changes in underground mechanical loading of
bituminous coal and lignite in the United States, 1989—40, by principal
types of machine8 and by States
Han-
Load- died ed by byconma- veyebines' ors2

State
1939 (net tons)


1940 (net tons)


Increase or decrease, 1940 from 1939





Perc~nt handled by each




Loaded
by ma-
chines 1
Handled
by con-
veyors 2
Total
Loaded
by ma-
chines'
Handled
by con-
veyors2
Total
Net tons


Percent
-—-~— H
Load- died
edby bycon- Total chites'


1939

H
Load- dled
ed by byconchines'

1940








L~ed
by ma-
chines
Handled
by con-
veyors 2
Total







Alahania - ..
Arkansas           
Colorado           
illinois             
I n(hana            
Iowa - - - - 
Kansas --          
Kentucky          
Maryland                   
Michigan.                   
Montana (bituminous coal) - -           
New Mexico        
N orth 1)akota (lig nite)             Ohio - - -          Oklahoma      
   Pennsylvania       ' J'ennessc           Utah              
Virginia            
Washington - -West Virginia       Wyoming          
Undistributed:
East of Mississippi
River          
West of Mississippi
River          
' 1 otal
1,041,038
117, 536
1,328, 117
24,842,466
6,063,606

(4)
3,643,893


(4)
(4)

(4)
5,071, 153
46, 339
10,590, 180
(4)
2, 135,610
1,598, 130
(4)
21,450, 142
4,309,930

~
~1, 969,524
I
1,867, 707
530,697
534, 955
1,727,733
324,645
66,422
 
1,451, 735
(4)
(4)

(4)
 

 
351,647
257,878
7,098,454
(4)
324,096
835,277
(4)
9, 02$~ 992
584, 145

f 832,217 L 687, 706
2,908,745
648,233
1,863,072
26, 570, 199
6,388, 251
66,422
(4)
5,095,628
(4)
(4)

1, 405, 393
(4)

(4)
5,422,800
304, 217
17,688,634
602, 191
2,459,706
2,433,407
710, 603
30,479, 134
4,894, 075

314, 984

456, 276
1,603, 194

(4)

1,868,794

28, 156,030

7, 176,040

(4)

5,494,346

 

 

(4)

(4)

(4)

7,750,819

(4)

18,031,402

93, 601

2,519,675

1,996,634

62,000

30,878, 128

4, 799,234

 --

2, 148,938
3,401, 717

(4)

683,932

1,364,457

230,880

(4)

 

1,656,208

(4)

(4)

(4)

(4)

 

493,023

(4)

9,203,634

622,215

353,285

1, 111,788

733, 494

13, 100,403

571,885

~

388,831

1,375, 645
5,004,911

945,052

2,552,726

29,520,487

7,406,920

132,947

7, 150,554

(4)

(4)

1, 511, 123

(4)

(4)

8,243,842

422,692

27,235,056

715,816

2,872,960

3, 108,422

795,494

43,978,531

5,371, 119

.

388,831

512,769
+562,156
+1,284
+540,677
+3,313, 564
+1, 112,434
(4)
(4)
+1,850,453
 
 

(4)
(4)

(4)
+2,679,666
(4)
+7,441,222
(4)
+384,065
+398,504
(4)
+9,427,936
+489,304
~

(12)

.
(12)
+1,534,010
(4)
+148,977
—363,276
—93,765
(4)
 
+204,473
(4)
(4)

(4)
(4)

 
+141,376
(4)
+2,105,200
(4)

+29,189
+276,511
(4)
+4,071,411
—12,260

(12)

(12)
+2,096, 166
+296,819
+689,654
+2,950,288
+1,018,669
+66,525
(4)
+2,054,926 i~
(4)

+105, 730
(4)

(4)
+2,821,042
+118,475
+9,546,422
+113,625
+413,254
+675,015
+84,891
+13,499,397
+477,044

(12)

(12)
+54.0
+1. 1
+40.7
+13.3
+18.3
(4)
(4)
+50.8
4
(4)

(4)
(4)

(4)
+52.8
(4)
+70.2
(4)
+18.0
+24.9
(4)
+44.0
+11.4

(18)

~
(12)
+82. 1
(4)
+27.8
—21.0
—28.9
(4)
~
+14. 1
(4)
(4)

(4)
(4)

 
+40.2
(4)
+29.7
(4)
+9.0
+33.1
(4)
+45.1
—2. 1


(18)

(12)
+72.1
+45.8
+37.0
+11. 1
+15.9
+100.2
(4)
+40.3
(4)
(4)

+7. 5
(4)

(4)
+52.0
-4-38.9
+54.0
+18.9
+16.8
+27.7
+11.9
+44.3
+9.7


(12)

~
(12)
35.8
18. 1
71.3
93.5
7 94.9
 
100.0
71.5
 
 

(4)
100.0

100.0
8935
11 15. 2
9 59.9
(4)
1086.8
8 65.7
(4)
8 70.4

88. 1

(12)

.
(12)
64.2
181.9

~28.7
86.5
8 5. 1
100.0

28.5
100.0
100.0

(4)
 

 
4 6.5
84.8
840.1
(4)
13.2
9343
(4)
~29.6
11.9

(ii)

(18)
32.0
(4)
73.2
795*4

996.9
(4)

76.8
 
 

(4)
(4)

100.0
' °94.0
(4)
965.2
13. 1
1087.7
9 64.2

7.8
10 70.2
89.4

(12)

(12)
68.0
(4)
826.8
84.6
3. 1
(4)

23.2
100.0
100.0

(4)
(4)


6.0
(4)
' 33.8
5 86.9
6 12.3
35.8
892.2
~29.8
8 10.6

-
(12)

(12)

84,207 664
26 504 306
110 711 9701112 578 835

35 291 417
147 870 252
+28 371 171
+8 787 111
+37 158 282
~4-337
-4-332
-1-336
761
239
761
239