ON STANDARDS OF ELKCTBICAL RESISTANCE. 



361 



Eesistance of metregramme of wii'e No. 



>» 



» 



I. 1-00000 

 11. 1-00045 



III. 1-00029 



IV. 1-00054 

 V. 1-00026 



GOLD-SILTER ALLOY. 



No. I. Part of the aUoy formerly prepared for the experiments described 

 in ' Phil. Mag.' Feb. 1861, and there described as wire No. I. 

 No. II. Part of No. VII. there described. 

 No. III. Part of No. VIII. there described. 



No. IV. From the first three alloys mixed and refused and drawn. 

 No. V. Alloy reprepared from the j)uro metals. 



Wire No. I. 



1804. 



2 B 



