 | Sir Norman Lockyer - 1881 - 770 Seiten
...substance may be allowed to flow away, or if the metal is contained in a suitable porons receptacle, the fusible oxide sinks into this containing vessel...separating it from precious or inoxidisable metals if any were originally present in the lead. The above fact has been known from remote antiquity, and the early... | |
 | 1885 - 912 Seiten
...fusible substance forms upon its surface. This substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, called...be originally present in the lead. I found lead in certain ancient ornaments both of gold and silver, which Dr. Schliemann asked me to analyse, and Pliny... | |
 | Sir Norman Lockyer - 1881 - 656 Seiten
...substance may be allowed to flow away, or if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel...separating it from precious or inoxidisable metals if any were originally present in the lead. The above fact has been known from remote antiquity, and the early... | |
 | 1887 - 886 Seiten
...fusible substance forms upon its surface. This substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, called...affords a means of separating it from precious or inoxidizablc metals, if any be originally present in the lead. This process is, as has been well observed,... | |
 | Sir William Chandler Roberts-Austen - 1891 - 318 Seiten
...substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel...separating it from precious or inoxidisable metals, if any were originally present in the lead. The above fact has been known from remote antiq uity, and the... | |
 | Sir William Chandler Roberts-Austen - 1914 - 472 Seiten
...substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel...separating it from precious or inoxidisable metals if any were originally present in the lead. The above fact has been known from remote antiquity, and the early... | |
 | Sir William Chandler Roberts-Austen - 1914 - 468 Seiten
...substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel...separating it from precious or inoxidisable metals if any were originally present in the lead. The above fact has been known from remote antiquity, and the early... | |
 | Institute of Bankers (Great Britain) - 1885 - 826 Seiten
...fusible substance forma upon its surface. This substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, called...be originally present in the lead. I found lead in certain ancient ornaments both of gold and silver, which Dr. Schliemann asked me to analyse, and Pliny... | |
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This substance may be allowed to flow away, or, if the metal is contained in a suitable porous receptacle, the fusible oxide sinks into this containing vessel ; in either case the oxidation of the lead affords a means of separating it from precious or... 