Y., and is something like the one of CharlesMann,ofTroy, N.T. Portable steam engines, we know, interest a large class of our readers, and also a very large proportion oi our citizens who are not ...

A large quantity of heat is lost by radiation ... yj the last great improvement m the steam engine. Since his time the boiler has been changed, tubular boilers have been introduced, and the ...

To see a sphere whizzing about trailing plumes of steam while flames ... penetrating the lid of a large kettle. [Make It Extreme] took great pains to make the engine safe, with relief valves ...