The Technical World Magazine, Volume 9Technical World Company, 1908 |
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Page 45
... SANDS REAR VIEW OF. DREDGER EATING INTO BLACK SAND OF THE OCEAN BEACH . A DETAILED VIEW OF THE DREDGER TAKEN AT CLOSE QUARTERS. F ROM Shasta to San Diego , all the way along the shores of the Pacific Ocean , there is gold in the black sand ...
... SANDS REAR VIEW OF. DREDGER EATING INTO BLACK SAND OF THE OCEAN BEACH . A DETAILED VIEW OF THE DREDGER TAKEN AT CLOSE QUARTERS. F ROM Shasta to San Diego , all the way along the shores of the Pacific Ocean , there is gold in the black sand ...
Page 108
... sand is desirable for making sand lime brick , brick , the proportion of coarse and fine qualities being a point upon which man- ufacturers differ . The fine sand combines readily with the lime , while the coarser par- ticles are needed ...
... sand is desirable for making sand lime brick , brick , the proportion of coarse and fine qualities being a point upon which man- ufacturers differ . The fine sand combines readily with the lime , while the coarser par- ticles are needed ...
Page 109
... sand 12 to 80 mesh , the balance of the sand being about 80 to 150 mesh . In order to secure these different quali- ties it is often necessary to grind most of the sand used . A pebble tube mill is generally used for this purpose . It ...
... sand 12 to 80 mesh , the balance of the sand being about 80 to 150 mesh . In order to secure these different quali- ties it is often necessary to grind most of the sand used . A pebble tube mill is generally used for this purpose . It ...
Contents
Testing Seeds for the Farm W | 11 |
TABLE | 13 |
First Balloon Flight Across Central Alps | 23 |
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