202 [Assembly 



times tlieir present power would be required. To produce this, 

 sixteen boilers and water must be employed instead of the pres- 

 ent four in each ship. Eight engines instead of the two in each 

 ship, four paddle wheels driven at double the speed of the 

 present slow wheels, while double the tonnage of coal will be 

 also indispensable. 



As marine steamers are already burdened wdth fuel and ma- 

 chinery to their utmost capacity, the foregoing enumeration 

 shows their utter incapacity for this or any great improvement, 

 however desirable for the advance of civilization, and only to be 

 eflfected hy the use of stame instead of steam. 



By comparing the peculiar properties of these distinct elements 

 it will be perceived that with tlie addition of a heater to the 

 present four boilers in use, they w^ould furnish from the present 

 fuel, a fargreater amount of elastic fluid (stame) of equal tension 

 with the steam the sixteen boilers w^ould supply with four times 

 tlieir present fuel, and as the voyage would occupy only Jialf the 

 time, half the present heavy tonnage of coals would better suffice 

 than the double tonnage the sixteen boilers would require and 

 consume, 



Then again, the substitution of simpler, lighter, more scien- 

 tific and powerful direct acting engines for the present enormous 

 ana needless, complex and cumbersome old fashioned engines, 

 (the bed pktes alone weighing much more than a better engine 

 need to,) light propellers and shafting instead of the awkward 

 and incoAvenient paddle wheels, enormous shafting and needless 

 wheel-houses, all of which old fasliioned contrivances, would be 

 jendered useless or destroyed by the first broadside from a man- 

 of-war steamer; properly propelled by a power which, with all 

 lighter and efficient machinery, boilers and heater, would (if 

 reason and invention were preferred to copying,) be placed below 

 the water line, and indestructible. A fuller description of these 

 important matters will follow after we have shown the benefit of 

 employing stame for locomotive purposes, whereby society may be 

 immensely benefited at little expense either of money or intellect. 



Having observed in a common locomotive boiler witliout steam 

 blast, lead was melted by the smoke in its passage from the 



