1850.] By the Barometer. 417 



Table III. — Factors for the sum of the detached Thermometers. 



Sum. 



Factor. 





40 



58.74 





50 



59.41 





60 

 70 



60.08 

 60.75 





Difference for single Degrees. 











80 



61.42 





1 



0.07 





90 



62.09 





2 



0.13 





100 



62.76 





3 



0.20 





110 



63.43 





4 

 5 



0.27 

 0.34 





120 



64.10 





6 



0.40 





130 



64.77 





/ 



0.47 





140 



65.44 





8 



0.54 





150 

 160 



66.11 

 66.78 





9 



0.60 











170 



67.45 





180 



68.12 





190 



68.79 





200 



69.46 





