Conductivities of Mixtures and of their Constituents. 289 

 Tin-Bismuth Alloy * (Wiedemann). 



Composition by 

 volume. 



Sn 



„ 20 p. c. Bi 

 ., 42-7 p. c. Bi 

 „ 69-1 p. c. Bi 



Bi 



k 

 observed, 







k calculated. 



















Ag = 100. 



Mean 



Error 



Mean 



Error 



Mean 



Error 





cond. 



p.c. 



resist. 



p.c. 



log. 



p. c. 



152 















101 



12-5 



+ 24 



61 



-40 



9-9 



- 2 



5-6 



95 



+ 70 



3-6 



-36 



6-1 



+ 11 



23 



5-9 



+ 156 



2-5 



4- 8-7 



3-5 



+52 



1-8 















Dilute Ethyl Alcohol (Henneberg). 







k calculated. 







Composition by 

 volume. 



k 

 obs. 











Mean 



Error 



Mean 



Error 



Mean 



Error 







cond. 



p. cent. 



resist. 



p. cent. 



log. 



p. cent. 



Water 



100 

 91 



91-3 



+ 3 



78-0 



-14 



86-1 



- 5-4 



124 p. c. Ethyl Ale... 



„ 245 H 



814 



82-9 



+ 2 



63-8 



— 22 



74-5 



- 8-5 



„ 36-1 „ „ ... 



73-1 



74-8 



+ 2 



54-4 



-26 



649 



-11 



., 473 „ 



64-6 



669 



+ 4 



47-7 



-26 



56-8 



-12 



,, 57'8 ,, ,, 



546 



59-6 



+ 9 



42-7 



-22 



50-0 



- 8 



,, 67 - 7 „ „ 



47-6 



52-7 



+ 11 



38'9 



-18 



444 



- 7 



„ 76-9 „ 



41-7 



46-3 



+ 11 



35 9 



-14 



397 



— 5 



„ 85-4 „ 



375 



40-3 



+ 7 



33-5 



-11 



35-9 



- 4 



„ 93 2 „ 



32-1 



34-9 



+ 9 



316 



— 2 



327 



- 2 



Ethyl Alcohol 



30-1 

















Water and Glycerine. 



Water 



•00140 

 119 



125 



+ 5 



116 



-3 



121 



+2 



„ 20-8 p. c. Glycerine ... 



„ 442 „ 



101 



109 



+ 8 



97 



-4 



103 



+2 



„ 70-4 „ „ ... 



81 



91 



+ 12 



82 



-1 



86 



+6 



Grlycerine 



70 

















Water and Ethyl Alcohol. 



Water 



00149 

 104 



118 



+ 13 



99 



- 5 



105 



+ 1 



,, 30 p. c. Alcohol 



„ 58 „ 



79 



90 



+ 14 



66 



-16 



76-4 



-3 



„ 81 ,. „ 



59 



60 



+ 12 



54 



- 8 



58-5 



-1 



Ethyl Alcohol 



47 

















* Wiedemann's copper-zinc results appear to exclude this alloy from the 

 class of physical mixtures. 



