152 
\ 
Very curious phenomena present themselves as the needle 
is prolonged. There ultimately becomes a point of stable 
equilibrium on the other side of the meridian. The follow- 
ing rough results obtained with a coil of 7J inches diameter 
will give an idea of these changes : 
Length 
of 
Needle. 
lin. 
2in. 
3 in. 
3Jin. 
4in. 
4|in. 
5in. 
5|in. 
6in. 
6Jin. 
6fin. 
7in. 
7Jin. 
7 Jin. 
8in. 
9in. 
lOin. 
llin. 
12in. 
13in. 
14in. 
15in. 
Deflection 
on the 
usual 
side. 
74° , 
72 9 
68 ° 
65J° , 
62° 
56° 
50° 
41J° . 
34° . 
23° , 
21 ° . 
17° 
13° , 
8J° . 
11 ° 
17° 
20 ° 
23° 
Deflection 
on the 
opposite 
side. 
35° 
47° 
57° 
59° 
59° 
63° 
62° 
61° 
59° 
58° 
56° 
Unstable 
Equilibrium 
on the 
opposite 
35° 
26° 
14° 
13° 
6 ° 
“Notes vOn the Smallest and Simplest Forms of Matter 
and its Relations to Mechanical Forces/’ by J. C. Dyer, 
Esq., V.P. \ 
The authors object in this paper is not so much to 
enlarge the present sphere of our knowledge, as it is to 
now little we really know, about the essence of 
