TRANSACTIONS OF THE SECTIONS. 



357 



this I have made use of the tables of Professor Stampfer at 



Vienna, who finds the highest contraction of water at 0*0375 



Th., or 38*75° Fahr.* At this point the recession of water by 



the pressure of one atmosphere is 46*77 miUionths. At 0*09125 



Th. the volume of the water augments 71*75 miUionths, having 



its temperature augmented 0*01 Th. The heat developed by the 



71*75 

 pressure thus augments its volume 0*00025 . ^^, = 1 "79 mil 



lionth, or the recession is 46*77 — 1 



0*01 

 79 = 44*98 miUionths. 



Actual experiments have given it 44*89, or 0*09 millionth 

 * PART OF STAMPFER'S TABLE. 



