Steam and Hot "Water for Greeni ouse Heating. 193 



12. Unfavorable conditions can be more readily overcome with, 

 steam than with, hot water. 



13. Hot water consumed more coal than steam, and was at the 

 same time less efficient. This result would probably be modified 

 in a shorter and straighter circuit, with greater fall. 



14. Under the conditions here present, steam is more economical 

 than hot water and more satisfactory in every way; and this 

 result is not modified to any extent by the style of heaters used. 



FRED. W. GAED. 



25 



