Viscous Traction of Lead and Tin Alloys. 201 



Tabulated Results. 



Percentage 

 of Lead 

 in wire. 



Load in 

 grams. 



Time of 

 expt. in 

 minutes. 



Total 



extension 



in cms. 



Coefficient 



of Viscous 



Traction 



X 10^. 



Tempera- 

 ture. 



100 



501 

 754 



30 

 12 



•082 

 1-112 



160 

 35-4 



155 

 15-5 



98 



501 

 1016' 

 1116 

 1216 

 1316 



60 

 9 

 5 

 4 

 5 



•218 

 •391 

 •410 

 •601 

 1-798 



73 



13-5 

 7 99 

 4-77 

 2-12 



17 

 19 

 19 

 19 

 19 



96 



567 

 1007 

 1107 

 1207 



19 



42 

 48 

 51 



•067 

 •522 

 •724 

 •923 



922 

 321 

 21 1 



15-4 



12 

 12 

 12 

 12 



92 



501 



55 



•303 



41-4 



10 



85 



569 

 1069 

 1169 



8 

 8 

 5 



•430 



•880 



1-895 



6-91 

 5-74 



1-88 



15 



15 

 15 



84 



500 



42 



•941 



1272 



20 



80 



500 



12 



1-836 



2-28 



22-5 



50 



500 



7 



1-150 



2-65 



15 



29 



500 

 500 



14 

 46 



1-155 



2-892 



4-71 

 3 57 



17 

 19 



20 



509 



5 



•080 



3-15 



12 



17 



567 

 1000 

 1100 



10 

 21 



27 



•779 

 2690 

 4-305 



4-15 

 2-99 

 2-34 



14 

 14 

 14 



14 



500 



42 



3005 



414 



15 



4 



500 



... 





403 



10 







49S 



16 



3-135 



217 



22-5 



The author desires to thank Professor Trouton, in whose 

 laboratory this work was carried out, for much kind advice 

 and assistance. 



London, University College, W.G. 



