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TRANSACTIONS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETY 



No. I. 



'Experiments on the TranfmiJJion of Acids, and other 

 Liquors, in the Form of Vapour, over feveral Subjlances 

 in a hot earthen Tabe. By Dr. Joseph Priestley. 



Read, Dec. T HAVE publlfhed an account of many experi- 

 20, 1799. X ments on the tranfmiffion of fteam, and alfo 

 of acids, in the form of vapour, over fubftances of vari- 

 ous kinds in hot earthen tubes, with an apparatus to 

 receive both the air that was produced in the procefs, 

 and the hquor that was diftilled. The following were 

 made at the fame time, but were then thought lefs wor- 

 thy of publication. Some of the fadts may, however, be 

 of ufe to thofe who may be difpofed to refume thofe 

 experiments. 



Sending the vapour of fpirit of nitre over an ounce of 

 iron turnings, I got 140 ounce mealures of air with 

 great rapidity. Of this no part was nitrous, or fixed, but 

 it was flightly inflammable. The reft was phlogilvicated. 



Vol. V. A In 



