462 THE SCIENTIFIC PAPERS OF 



results were obtained by Professor Kennedy and by himself over and 

 over again in testing good mild steel. Of course the stretching was 

 ever so much less after the bar was punched through the middle, 

 because it did not matter how long the bar was, the strain fell 

 only in the line of least sectional area. In the first bar there was 

 a stretch of 2 inches, in the second f inch, and in the third 

 inch. 



In the discussion of the Paper 



"ON THE INFLUENCE OF THE BOARD OF TEADE 

 EULES FOE BOILEES UPON THE COMMEECIAL 

 MAEINE," by J. T. MILTON, Esq., 



SIR WILLIAM SIEMENS * said : My Lord, when gods fall out, 

 mortals suffer, and I present myself to-day as one of those 

 sufferers, in the character of a shipowner. Nine years ago I had 

 a ship constructed for cable purposes the " Faraday." I took 

 great care myself of all the arrangements necessary to make that 

 ship efficient for laying and picking up cables, but as regards 

 boilers and engines I relied entirely upon the Board of Trade 

 Eules and Lloyd's Eules as they then existed, my instruction 

 being simply, " Make the boilers as safe and the engines as effi- 

 cient as they can be made." The result was undoubtedly a suc- 

 cess. That ship never failed to do its arduous duties, being out 

 on the Atlantic sometimes in the winter months for weeks 

 together, engaged in very rough work. But in the course of a 

 few years the Board of Trade Eules were altered, and it was 

 intimated that these boilers were really no longer sufficient under 

 the new Eules laid down. We had the boilers carefully inspected 

 after each voyage, and they were pronounced both by the Board 

 of Trade surveyors and Lloyd's surveyors to be in perfect condi- 



* Excerpt Transactions of the Institution of Naval Architects, Vol. XXIV. 

 1883, p. 88. 



