EXPERIMENT STATION BULLETINS. 

 January. — Temperature and Coal Record. 



199 



The average shows that the steam house had a temperature about one 

 and one half degrees lower, although it consumed 24% more coal. For 

 the month of January the average temperature of the steam house at 9 p. 

 m. and 6 a. m. was, respectively, 54.3 and 52.5, while that of the water 

 house for the same hours was 54.8 and 54.1. This is practically the same 

 as for December. It will be noted that although this difference is slight 

 (half a degree), at 9 p. m. the steam house had lost about two degrees 

 before 6 a. m., while in the hot-water house the temperature had only 

 fallen .7 of a degree. The maximum and minimum thermometers show 

 one degree greater range in the steam than in the hot-water house. 



