106 



REPORT — 1853. 



Table XVII,— Eighteenth Melting. 



The above completes the series on the transverse strengths 

 as weU as the working powers of this iron, which after these 

 repeated meltings are really of little value. Such iron 

 may be of some use in mixing with the finer and more fluid 

 descriptions of iron ; but its obdurate, brittle, and uncertain 

 character renders it totally unfit for purposes in connection 

 with the useful arts. Appearance white and silvery over the 

 whole surface of the fracture. See figure. 



Results reduced to those of bars TOO in. square. 



Specific 

 gravity. 



Breaking 



weight 



(b). 



Ultimate 



deflection 



(d). 



Product b x 



d, or power 



of resisting 



impact. 



Experiment 1, bar 4 ft. 6 in. between 

 supports 



Experiment 2, bar 4 ft. 6 in. between 

 supports 



Experiment 3, bar 4 ft. 6 in. between 

 supports 



Mean 



7^385 



336-9 

 2940 

 307-2 



0-49 

 0-43 

 0-51 



1650 

 126-4 

 156-6 



7^385 



312-7 



0476 



148^8 



