498  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1904.         [bull.  260. 
Value  of  cement  production  in  the  United  States,  1900-1903. 
Portland  cement 
Natural  cement  . . 
Puzzolan  (slag)  cement 
Total 
1900. 
$9,280,525 
3, 728, 848 
274, 208 
1901. 
$12,532,360 
3.050,278 
198, 151 
13,283,581       15,780,789 
1903. 
$20,864,078 
4,070.630 
425,672 
25, 366, 380 
1903. 
$27,713,319 
3,765,520 
542, 502 
31,931,341 
PORTLAND   CEMENT. 
Total  production  of  Portland  cement.— The  figures  tabulated  below, 
taken  from  the  volume  Mineral  Resources  of  the  United  States, 
annually  issued  by  the  United  States  Geological  Survey,  give  the 
production  of  Tort  land  cement,  by  States,  for  the  years  1901,  1902, 
and  1903 : 
Production  of  Portland  cement  in  the  United  States  in  1901,  1902,  and  1903,  by 
States. 
State. 
Alabama  . .  - 
Arkansas... 
California  . . 
Colorado  ... 
( Georgia  
Illinois 
Indiana... 
Kansas 
3!  ichigan 
Missouri 
New  Jersey  ... 
New  York 
Ohio 
Pennsylvania  _ 
South  Dakota . 
Texas 
Utah 
Virginia 
West  Virginia  . 
Total 
L901. 
Num- 
ber of 
works. 
Quan- 
tity. 
Kan-els. 
<■  1         1  Hi.  S|S 
</|        585,000 
i       528,925 
2  ,    218,  t02 
1 
Id   1,025,718 
3  L,612,000 
7  :    617,228 
'■7  689,852 
i:5  7,091,500 
1    
/2  135,752 
1    
1    
5:;    12.II  1.225  1  2.532, :«  «> 
Value. 
$513,968 
643,500 
581,818 
240,242 
190?.« 
Num- 
ber of 
works. 
1,128,290 
1.  150,800 
in ;.  22s 
758,837 
6,382,350 
:-'ir>  ,327 
Quan- 
tity. 
Barrels. 
204.15:; 
82,044 
Value. 
$431,910 
105,016 
767, 781 
536,706 
830,050 
L,  577, 006 
2,152,158 
1.156, S07 
563,113 
S. 770, 454 
077,541 
628,244 
1,017,824 
2,134,396 
2,563,355 
1.521,55:5 
685,571 
10,130,432 
165,500        234,950 
334,869        433,286 
65   17,230,644  20,864,078 
1903.  b 
Num- 
ber of 
works. 
n 
Quantity. 
Barrels. 
631,151 
258,773 
1,257,500 
1,077,137 
1,019,682 
1,955,183 
825,257 
2,693,381 
1,602,946 
729,519 
9,754,313 
538, 131 
Value 
$1,010,35,' 
436,531 
1,914,50' 
1,:U7.70 
1 .  285, 31 
2,674,71 
1,164,8? 
2,944,6(1 
2,031,1 
9S8, 1 
11,205,4 
690,1 
22,342,973 
27,713,8 
"  The  States  combined  for  1902  are  mentioned  in  the  text  of  the  report  for  1902. 
'Tli.'  States  combined  for  1903  are  given  in  the  text  below. 
'Includes  product  of  the  single  planl   in  Utah. 
'/  Includes  product  of  the  only  Portland-cemenl  plant   in  Kansas. 
'  Includes  product  <d"  the  only  Portland-cement  plant  in  Virginia. 
f  Includes  product  of  the  single  plant  in  South  Dakota. 
