of an Electric Current by Magnetic Action. 
C means current along line C D (fi 
M sae sei 
of ge er in 
expression D 
Ox 
WM’ 
123 
g. 1). 
y of magnetic field perpendicular to plane 
a penny power, which is numerically defined by the 
in which D is the thickness of the metal strip, 
and E is the electromotive force resulting from C and M which 
maintains the transverse current.* The R. P 
tive when E is of 
current in that direction in which 
such ac 
character as to send a pos 
the ondueethiy strip te 
. is considered post- 
sitive transverse 
ends to 
aoc under the action of the main current and the magnetic 
The te emperatures ee ae to in the tables are those indicated 
n the water tank containing the plates 
bya thermometer 
when under examination (fig. 2 
Copper, Zine, and their Alloys. 
Composition ] R.P. |Composi- 
da , chem. anal. | Date. |Tem.| M | © Fateh aC, nose ens 
iy Goppen Cob Peron ' x 10 Cop.izine. 
1883. uy 
” (99'9) Aug. 11/ 3°C./5700 0619) (—521) 
< “© | 4°8° 15640-0819) (—530) 
: ' « jen5e B660| 0876) 520) ae 
ic Aug. 29/24°5°/6030/°1906)(—519) 
B 813 | 18 
(81-08)/(18°51) Aug. 18) 25° |5750/-1800) (—404) |(—404)/91-3) 8°7 
C (7 48 27 
* (72°86) (27°02) Aug. 17/ 5°1°|5680|-1810| (— 246) 
- “ “ — |99-8°15'700 1830) (—250) |(—250), 80} 20 
D 7 
% (66°85)|\(33-04)/ Aug. 13, 6° |5830.1680| (—178) 
2 x * | 95° 15930/-1680| (—166) |(—166))73.6)26-4 
F 6 
: (5-87)|(08 79) Aug. 1%) 4° |5640/-1790) (+ 52%) 
. | “| 24°2/5690/-1780} (+496) (+496) 24-3)75°7 
| 
G 
* (trace)|(99 54) Aug. 15) 4:4°/6150, wrens dh, 
25° (6130, + 
: { « Re -4°16210 - pero Leon | (4930) 
This table shows the results of experiments with the metal 
stri 
* 
The R.P. of this article is the ee of the Gunning 
Cle in the Am, 
Ps thus far described in detail. 
r. Jour. of Science, Sept. 1 
am Crapo of ahops which a priori capi have been —— to have these 
he last two columns give 
CV sed i in my arti- 
