The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 297
. A new % K ^ W0 … ILL. No. 123. DIATOMACEOrS EARTH FROM LOMPOC. HIGHLY MA(;Nn-MKD. THEMICROSCOPE SHOWS ITS REMARKABLE PIRITV .\XI) POROSITY. use introduced in Germany is for cleaning and scouring wool by forcingit through the wool by air blast. The })roduction of diatouLaccous earth in the United States is…
Building stones · Portland cement · Clay · Mines and mineral resources
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