88 Suggestions for Reducing Temperature. 



promptly accomplished. I will venture to predict that, 

 when this subject is once fairly considered, there will 

 be an immediate application of the refrigerating process 

 by the expansion of dry compressed air to all steamers 

 carrying passengers through the tropics, as well as to 

 hospitals, legislative chambers, town halls, and, perhaps, to 

 private houses in hot summer weather in tropical or sub- 

 tropical countries. 



All that would be necessary to moderate the temperature 

 in saloons or between decks in steamers would be to provide 

 a few small tubes fitted with stop-cocks to discharge dry 

 compressed air within them. These should be overhead, as 

 the expanding cool air in absorbing heat from the surround- 

 ing atmosphere would have a tendency to descend, whilst 

 the warmer air below would have a tendency to rise and 

 mix with it. Thus, in a few seconds, the temperature of the 

 air within the whole space would be reduced. 



No arrangement for reducing high temperature in pas- 

 senger steamers or ships would be complete unless it could 

 be applied to both decks as well. The difficulty in reducing 

 high temperature in the open air, say on the poop or main 

 deck, would be greater than in the saloon or between decks, 

 but I do not think it would be insurmountable. A few 

 small tubes provided with stop-cocks should be placed over- 

 head under the awning, and a few also in the fore part of 

 the main deck and poop. In calm weather these would be 

 available, especially the latter, for in the forward motion of 

 the vessel the cool air would drift aft towards the stern. 

 Should a wind blow from either quarter, I assume that a 

 curtain would be placed to windward to protect the pas- 

 sengers. Movable standards with flexible tubes, so that 

 they could be shifted to suit the direction of the wind, 

 would, perhaps, be most serviceable with a wind from either 

 quarter. 



It would be a great gain to have this suggestion carried 

 out between decks. It could be applied subsequently to 

 the upper deck in the best way to be determined by 

 experiment. 



