290 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Junctions. Copper-Steel Circuit. Copper- German-silver. 



i. Jl. L. H. 



1,4,7,10 36.28 ^^^^x 46.98 



30.76 ^ 

 30.80 V 



36.20 .. .. f ^_^^ 46.90 



36.14 



36.15 -— / 46_82 



30.80 j 



46.84 



^^•1^ Q, «, I 46.90 



35.11 



35.66 

 35.66 



46.76 

 1,4,7,10 35.98 g^^^s 46.70 



40.85 y 6.09 



46.90 40.92]- 5.94 



46.94 ) 



2,5,8,11 35.80 g^^^^x 4g9Q 40.85 J- 6.07 



^^•"^^ 31.04 > 4.73 



35.76 46.95 ) 



35.78 ^^•'^^-' 46.87 40.86 1 6.05 



40.78 i 6.07 



3,6,9,12 35.15 ^^,^. 46.86 ^^•'^J 



31.58 V3.54 



q, fi, ( ' 46.90 ) 



''■''} 46.96 40.88 1 6.05 



lo o^ -o 47.02 •) 



13 34./ 8 o, oO ^7nA 40.95 U.06 



34.80 f^-^n2.88 ^'-^^ ^ 



31.91 ^ 



34.84 



46.85 ) 



46.91 41.00 I 5.88 



3,6,9.12 35.12 „, ,^ x 46.70 .noaKoi 



35 10 ^1-^^) 46.88 40.98 [-5.81 

 "' '^ 3.54 



35.14 



S)10 "51.00; 46.75 . 



46.81 41.10 ;. 5.68 



2, 5, 8, 11 35.70 X 46.78 ) 



33.68 ''■'-'],., 46.74 ^'-'^'^-ee 



30.98 >4.73 ^ 



30.96 j 46.80 -> 



,^ „^ 41.14-5.61 



46. /O j 



41.30 ^ 5.43 



^.^^ 30.66 y 5.25 ^^^^ 



3<'>-90 ^^„^ ( 46.65 ) 



^^,, 30.70 ,,^. 41.18 U.47 



35.90 

 35.90 

 35.98 — — ; 4gg5 -xx.xo^- 



Time occupied, 5:39 to 6:35 =56 minutes 



Mean, 5.85 



