44 
W. C. EBAUGH 
been reached without hard work, scientific skill, ample capital, 
constructive ability and business daring on the part of our citi- 
zens, but this victory in an art of peace is no less splendid than 
that won in war itself. Its story constitutes another chapter 
in the romance of American industrial achievement. 
ADDENDUM 
Revised statistics issued since the above was written give a 
somewhat . smaller production of potash during 1918 than was 
estimated in October of that year. Press Bulletin No. 399 (Feb- 
ruary, 1919) of the United States Geological Survey reads in 
part as follows: 
Statistics of the production of potash in the United States in 1918, 
which are complete except for reports from some of the smaller pro- 
ducers, show a large increase of output. The returns now at hand 
indicate a total production of 192,587 short tons of potash materials 
containing 52,135 short tons of actual potash (K 2 O). They are sum- 
marized in the following tables, compiled by W. B. Hicks, of the United 
States Geological Survey, Department of the Interior. 
Potash produced in the United States in 1918, classified according to sources 
SOURCES 
NUMBER OF 
PRODUCERS 
TOTAL 
PRODUCTION 
AVAILABLE 
POTASH (K 2 O) 
Natural brines 
21 
tons 
147,125 
tons 
39,255 
Alunite 
4 
6,073 
2,619 
Dust from cement mills 
9 
11,739 
1,429 
Kelp 
6 
14,456 
4,292 
Molasses distillery waste 
4 
9,505 
3,322 
Steffens waste water 
5 
2,818 
761 
Wood ashes 
26 
609 
365 
Other sources 
3 
262 
92 
Total 
78 
192,587 
52,135 
The production in 1918 was almost double that in 1917. About 75 
per cent of the total output came from natural brines, 55 per cent com- 
ing from brines in Nebraska alone. Most of the product was in the 
form of mixed salts and fertilizer materials containing from 20 to 30 
