84 Prof. Faraday on Electric Induction— 
These excentricities which are now quite large, have then always 
been and will always remain large. . 
2. The same is true of the inclinatioy of their orbits. So that 
the amount of excentricity and inclination answers to the primi- 
tive conditions of the formation of the group. 
These propositions are true only for distances from the sun 
above 2:00. An asteroid situated between Mars and the distance 
of about 2:00 would not be stable in the meaning which 1s 
. 
attached to that word in celestial mechanics. 
and that coming to their opposition only near their aphelia, they 
will then be too far from us ? 
_ 4, Owing to the magnitude of the excentricities and the inclina- 
tions and the smallness of their variations, the mean motions 0 
the perihelia and of the nodes are proportional to the times. 


Arr. XTIL—On Electric Induction— Associated cases of Current 
and Static Effects ; by Professor Farapay, D.C.L., F.R.S.* 
Certain phenomena that have presented themselves in the 
course of- the extraordinary expansion which the works of the 
Electric Telegraph Company have undergone, appeared to me to 
opper wire is perfectly covered with gutta percha at the Com- 
pany’s works, the metal and the covering being in every patt 
regular and concentric. The covered wire is usualy made into 
half-mile lengths, the necessary junctions being effected by twist- 
or binding, and ultimately soldering ; after which the place 
* Phil. Mag., 4th Ser,, vii, 197, March, 1854, : 
tan 

