80 



Intelligence and Miscellaneous Articles. 



Tin 



Bismuth 



Zinc 



Lead. 



Cadmium 



Temperature. 

 358° 



860° 

 Fusing-point. 



35S° 



860° 



Fusing-point. 



440° 



Fusing-point. 



First experiment 

 Second experiment 



Mean .... 



One experiment . . 



/ Liquid state .... 

 \ Solid state 



First experiment. . 

 Second experiment 



Mean .... 

 One experiment . . 

 Liquid state .... 



Conductivity. 



358° 



860° 

 ^Fusing-point 



440° 



Fusing-point 



/Lie 



\ Solid state 



One experiment .... 2 



f Liquid state 2 



\ Solid state 5 



f First experiment. ... 



Second experiment. . 



l' 



Antimony. . <( 



860 c 



Fusing-point. 



Mean 



One experiment .... 



{Liquid state 1 



Solid state 1 



f First experiment .... 2 



■^ Second experiment . . 2 



I Mean | 2 



{Liquid state 2 



Solid state 5 



("First experiment .... 



<J Second experiment . . 



Mean 



Liquid state 



Solid state 



89 



S8 



88 



42 







4 



715 



697 



70 

 596 



73 

 34 



5S 



6 

 2 



951 



966 



95S 

 771 

 

 09 



79 

 46 



62 



8 

 



790 

 776 



783 



84 

 59 



Neither zinc nor cadmium could be fused in the vapour of cadmium, 

 in consequence of oxidation. 



Conclusions. — It has been confirmed for tin, lead, bismuth, and 

 antimony, that the resistance increases from the fusing-point to 

 the highest limit which could be obtained. The total increase, cor- 

 responding to 502°, between 35S°and 860°, divided by the resistance 

 at 3.58°, is 0*32 for tin, 0'24 for lead, and 0*18 for bismuth — values 

 which differ considerably, and are all smaller than that found for 

 mercury, using its known coefficient. 



For all these metals there is a sudden change corresponding to the 

 change of condition. For tin, lead, cadmium, and zinc the resistance 

 is almost doubled ; for bismuth and antimony the variation is inverse, 

 greater for bismuth than for antimony. — Comptes Rendus, Oct. 26,1863. 



