|l0l£B 0it Stalionurn ^ii^hic 



By G. W. SUTCLIFFE. 



Bead on Tucxday, March 22nd, 1887. 



HTN" the following notes there is no pretence to originality 

 -"- set forth, but the hope is felt that perhaps a good dis- 

 cussion may bo raised, as the subject is one which is more or 

 less within the pi-ovinco of all engineers. In .some measure 

 the matter is extracted from a paper laid before the Insti- 

 tute of Civil Engineers some years ago. 



As a rule there is no sort of boiler whicli for consider- 

 able powers will compete with a Cornish or Lancasliire one. 

 Small powers are, however, most cheaply provided by the up- 

 right or crane boilers ; and where space is specially valuable, 

 some kind of tubular boiler may be adopted with advantage. 

 The grand advantages of the Cornish and Lancashire boilers 

 are that there are no very narrow spaces to become choked 

 up with sediment, ii,nd that thei'o need 1)0 scarcely any part 

 of the whole, inside or outside, which is not fairly accessible. 

 Other advantages are that they will stand mnoli abuse from 

 an incompetent stoker with impunity, and thai they are 

 comparatively little liable to prime. 



Now as to the narrow water spaces, it may bo romai'ked 

 that many large boilers have been built and worked, in 



