Chemical News and Journal of Industrial Science, Tomy 5-6Chemical news office., 1862 |
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Strona 125
... ordinary methods for the extraction of its metal . Considering that under ordinary circumstances the whole of the sulphur contained in copper pyrites and many other ores of copper is lost to the smelter , the advantage of heaping yet ...
... ordinary methods for the extraction of its metal . Considering that under ordinary circumstances the whole of the sulphur contained in copper pyrites and many other ores of copper is lost to the smelter , the advantage of heaping yet ...
Strona 253
... ordinary means . This study has led us to the discovery of a new method for refining saccharine liquids , and of revivifying animal charcoal , as shown in the following principal results in the manufacture of beet - root sugar : - 1. To ...
... ordinary means . This study has led us to the discovery of a new method for refining saccharine liquids , and of revivifying animal charcoal , as shown in the following principal results in the manufacture of beet - root sugar : - 1. To ...
Strona 285
... ordinary agriculture . They had grown wheat for eighteen years consecu- tively on the same land , respectively without manure , with farm - yard manure , and with different constituents of manure , and they had determined the amounts of ...
... ordinary agriculture . They had grown wheat for eighteen years consecu- tively on the same land , respectively without manure , with farm - yard manure , and with different constituents of manure , and they had determined the amounts of ...
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