 | Ralph Griffiths, G. E. Griffiths - Books - 1770 - 604 pages
...this powder one part of the flowers of fulphur ; let this mixture be rammed into a crucible of about an inch and a half in depth, till it be almoft full...be kept red hot for one hour at leaft, and then fet by to cool : when cold, turn it out of the crucible, and cutting or breaking it to pieces, fcrapeofF,... | |
 | Tiberius Cavallo - Electric power - 1777 - 484 pages
...light, and this phial will receive that light, and after-? " mixture be rammed into a crucible of about an inch " and a half in depth, till it be almoft full...placed in the middle of the fire, where it muft be kept " red-hot for one hour at leaft, and then fet it by to " cool : -when cold, turn it out of the crucible,... | |
 | Books - 1785 - 620 pages
...this powder one part of the flowers of fulphur; let this mixture be rammed into a crucible of about an inch and a half in depth, till it be almoft full...let it be placed in the middle of the fire, where it inu!l be kept red hot for one hour at leait, and then fet by to cool : when cold, turn it out of the... | |
 | William Nicholson - Astronomy - 1787 - 412 pages
...of flowers of fulphur. Let the mixture be rammed into a crucible of about one inch and 'a half-fti depth, till it be almoft full, and let it be placed...muft be kept "red hot for one hour at leaft, and then let by to cool. When it is cold, turn it out, and cutting it into pieces, fcrape off or felect upon... | |
 | William Nicholson - Astronomy - 1790 - 412 pages
...this powder mix one part of flowers of fulphur. Let the mixture be rammed into a crucible of about one inch and a half in depth, till it be almoft full,...muft be kept red hot for one hour at leaft, and then let by to cool. When it is cold, turn it out, and cutting it into pieces, fcrape off" or felect upon... | |
 | George Adams - Electricity - 1799 - 634 pages
...sulphur; let this mixture be rammed into a crucible about one inch and an half in depth, till it be almost full, and let it be placed in the middle of the fire, where it must be kept red-hot for one Lour, and then set it by to cool; \\hen cold, turn it out of the crucible,... | |
 | History - 1800 - 586 pages
...this pow_ der one part of the flowers of fulphur: !et this mixture be rammed into a crucible of about- an inch and a half in depth, till it be almoft full...fire, where it muft be kept red hot for one hour at lead, and then fet by to cool: when cold, turn it out of the crucible, and cutting, or breaking it... | |
 | History - 1800 - 580 pages
...'et this mixture be rammed into a crucible of about an inch and a half in depth, till it be almort full ; and let it be placed in the middle of the fire, where it muft be kept red hot for one hour at Jealt, and then fct by to cool : when cold, turn it out of the crucible, and cutting, or breaking it... | |
 | William Pybus - Handbooks, vade-mecums, etc - 1810 - 276 pages
...let this mixture be pressed into a crucible of about an inch and a half in depth, till it be almost full, and let it be placed in the middle of the fire, •where it must be kept red hot for one hour at least, and then set by to cool : when cold, turn it out of the... | |
 | William M. Yen, Marvin J. Weber - Science - 2004 - 496 pages
...sulphur; let this mixture be rammed in a crucible, of about an inch and a half depth, till it be almost full, and let it be placed in the middle of the fire, where it must be kept red hot, for one hour at least, and then be set by to cool. When it is cold, turn it out... | |
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... let this mixture be rammed into a crucible of about an inch and a half in depth, till it be almoft full ; and let it be placed in... 
