155 



COUNT RUMFORD'S NEW EXPERIMENTS 



com© ftationary, I did not very carefully notice the progrefs 

 of the thermometers toward this point ; but as foon as they ap- 

 peared nearly flationary, I obferved them with the greateft at- 

 tention for near half an hour. 



The thermome- To diftinguifh the three thermometers I (ball call that neareft 

 ters diftingui/h- the boi!ing vyater B> thaL jn lhe cejUre ^ and that neareft the 



cold water D. 

 Experiment, The following are the progrefs and refults of an experiment 



made the 23th of April, 1804, the temperature of the air being 

 73* of Fahrenheit. 



Tabulated re- 



fttiUa 



.Account of the 

 results that 

 would have fol- 

 lowed the hypo- 

 Chcfil of heat 

 being propagated 

 through bodies 

 by radiation 

 from particle to 

 particle. 



The particles of 

 fulid bodies are 

 difrant from 

 each other. 



Before I proceed to examine more minutely the refults of this 

 experiment, I will endeavour to (how thofe refults which it 

 ought to have exhibited, on the fuppotition that heat is propa« 

 gated, even in the interior of folid bodies, by radiations ema- 

 nating from the furfaces of the particles compofing thefe; 

 bodies. * *i < \ 



On this fuppotition we muft neceiTarily confider the particles 

 thatcompofe bodies as being fepar&te from each other, and even 

 to pretty confiderable diftances compared with the diameters 

 of thefe particles; but there is nothing repugnant to the ad- 

 miflion of this fuppofition ; on the contrary, there are many 

 phenomena which apparently indicate that all the folid bodies 

 with which we are acquainted are thus formed. 



To 



