J 



3-06 Dr. Priest ley's Experiments and Ohfct^callons 



vapour of f^urit of wine in contact with them, differeiiffub- 

 fiances were formed according to the metals employed. Thfe 

 new lubllances hereby formed may he fa id to be the feveral 

 metals lb per- latu rated with phlogifton, and may perhaps not 

 be improperly called the charcoal of met ah. 



That this appellation is not very improper, may appear froiii 

 thefelubftances yielding inflammable air very copioufiy when 

 thev are made red-hot, and the fleam of water is tranfmitted 

 in contact w^ith them, jiift as when the charcoal of w^ood is 

 treated in the fame manner. The detail of thefe experiments 

 1 referve for another communication, as alfo thofe of the con- 

 verfion of (pirit of wme, tether, and o//, into different kinds of 

 inflammable air, by tranfmitting them, in vapour, through 

 hot earthen tubes. In the mean time, I Ihall think myfelf 

 happy if the communication of the preceding experiments (hall 

 give any fatisfadion to the Members of the Society. 



P O S T S C R I P T. 



BEFORE I clofe' this paper, I wifli to make a few general 

 infer ences froiti the principal of the experiments above-men- 

 tioned, efpecially relating to the proportional quantity of phlo- 

 gifton contained in /><?« and wafer. 



When any quantify of iron is melted in idephlogifticated air, 

 it imbibes the greatefl part of it, and gains an addition of 

 weight very nearly eqilal to that of the air imbibed. Thus the 

 abforption. of twelve ounce meafures of dephlogifticated air 



2 gave 



