TRANSACTIONS OF THE SECTIONS. 



357 



this 1 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 milhonths. At 0*09125 

 Th. the volume of the water augments 71*75 milhonths, 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*79 = 44*98 milhonths. 

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



♦ PART OF STAMPFER'S TABLE. 



