at different Degrees of Heat. 269 



Bladh, ill the Memoirs of the Academy of Stockhohn for the 

 year 1776, whofe determinations, as far as they reached, agreed 

 very nearly with mine. The water I ufed was common water 

 well boiled and filtered. The experiments were for the moft 

 part three times repeated, and the difference in each trial 

 amounted to a very few grains. 



Hence wx fee, that a cubic foot of water weighs 4<?5,3 grains 

 more at 42° than at 62', and confequently is equal to 1001,109 

 avoirdupois ounces, and in the temperature of 82^ it weighs lefs 

 than at 62° by 788,5 grains, and therefore is equal to 998,198 

 ounces. At the boihng point it wants 16589 grains, or ^y,()iS 

 ounces of the weight it poflefles at 62°, and confequently 

 weighs but 962,085 ounces, &e. 



In 



