170 HOT WATER AND STEAM. 



moderately moist state, and at this season the 

 water should be given to the earth only ; but as 

 the spring advances, and warm weather succeeds, 

 the waterings should succeed in proportion ; at 

 all times keep the plants free from decayed 

 leaves. 



It is also very desirable to keep the water in 

 the hothouse, or to have it about the same 

 warmth as the temperature of the pinery. 



HOT WATER AND STEAM, THE GENERAL USES 

 THEREOF IN FORCING, WITH EXPLANATORY 

 REMARKS. 



Par. 13. The vast scientific improvements 

 which of late years have so wonderfully developed 

 themselves, none stands forth more prominent 

 than those produced by fire and water. 



When we look at the power of steam, which 

 is produced from water and caused by the heat 

 of fire, and view the stupendous undertakings 

 now in progress, through the skill and appa- 

 rently ardent desire of scientific men to vie with 

 each other, must hand the nineteenth century 

 down to posterity as a gem of science unparal- 



