190 SUPERHEATED STEAM IN MARINE PRACTICE. 



74. In this it will be noted that he credits the Schmidt superheater as being 

 applied to slightly over 1,000 vessels, but recent information show over 1,200 

 steamers at present equipped, and that they total approximately 1,800,000 horse- 

 power. Furthermore, the Foster superheater has been, according to information 

 received, applied to 6 ships which have an aggregate of about 16,000 horse- power. 

 It is believed that the figures given above, when supplemented by other installations, 

 will give a total of over 1,500 ships using superheated steam, aggregating indicated 

 horse-power of 2,300,000. 



75. Is it then too much to expect that the American merchant marine will, in 

 the next few years, very actively take up the question of superheating steam? And 

 is it not reasonable to expect that a few years will find us comparatively abreast 

 of English and continental shipbuilders in regard to this very important means of 

 reducing operating expenses. 



76. In closing, the writer wishes to make acknowledgment to Prof. W. H. 

 Watkinson's and Mr. Harry Gray's papers before the Institution of Naval Archi- 

 tects, dealing with this general subject. 



yy. Attached, as an appendix, is a bibliography of articles relating to marine 

 superheaters and closely allied topics which will be of reference interest. 



